{"id":26,"date":"2020-09-11T22:49:37","date_gmt":"2020-09-11T22:49:33","guid":{"rendered":"http:\/\/depts.washington.edu\/lampr\/?page_id=26"},"modified":"2026-02-05T13:06:25","modified_gmt":"2026-02-05T21:06:25","slug":"home","status":"publish","type":"page","link":"https:\/\/depts.washington.edu\/lampr\/","title":{"rendered":"Home"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"26\" class=\"elementor elementor-26\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2e59975 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2e59975\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-169c262\" data-id=\"169c262\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f7acac8 elementor-icon-list--layout-inline elementor-align-center elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"f7acac8\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items elementor-inline-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-envelope\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">darola@uw.edu<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-phone\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"> (206) 685-8158<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/uw.edu\/maps\/?rob\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-map-marked-alt\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">ROB 327<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-50c1f94 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"50c1f94\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-095e5c7\" data-id=\"095e5c7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4fdfd4a elementor-widget elementor-widget-text-editor\" data-id=\"4fdfd4a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt; color: #000000;\">Research interests include Additive Manufacturing processes for polymers, metals and their composites,<\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt; color: #000000;\">Aging-related degradation of Natural and Engineered materials, <\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt; color: #000000;\">and Machine Learning for Bio-inspired Modeling<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c86f40 elementor-arrows-position-outside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"9c86f40\" data-element_type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2025\/05\/Arola-Group-2025-Roberts-BL-768x1152.jpg\" alt=\"Arola Group 2025 Roberts BL\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/12\/20240712_Materials-Science-Engineering-Enamel-Research_1004-768x512.jpg\" alt=\"20240712_Materials Science &amp; Engineering Enamel Research_1004\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2025\/06\/IMG_5903-FNL-recovered-launch-768x576.jpg\" alt=\"IMG_5903 - FNL recovered launch\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/08\/Ti-AM-extraction-768x1024.jpg\" alt=\"Ti AM extraction\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"5 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/07\/1_DonnaGuillen_LionEnamelOpticalFlow-768x768.png\" alt=\"1_DonnaGuillen_LionEnamelOpticalFlow\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"6 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/08\/materials-2-magnifying-4-small-768x768.jpg\" alt=\"materials-2-magnifying-4 (small)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"7 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/3248-big-compression-machine.jpg\" alt=\"3248-big-compression-machine\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"8 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/condensateOnPowder_SarahWaddell-768x547.jpg\" alt=\"Titanium condensate from laser powder bed fusion process on the surface of Ti powder. By Sarah Waddell.\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"9 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/Enamel-Microstructure-Damage-Tolerance-768x427.jpg\" alt=\"Overview of the hierarchical nature of enamel microstructure and some of the toughening mechanisms that can be seen from the micro-scale to the meso-s\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"10 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/MicroMonkeys-768x547.jpg\" alt=\"Whimsically edited photo of embedded carbon fibers.\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"11 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/09\/DSCF2364-768x549.jpg\" alt=\"DSCF2364\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"12 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/07\/SpaceDebris_Waddell-768x547.jpg\" alt=\"SpaceDebris_Waddell\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"13 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/07\/181-example-control-mouse-mands-resize-768x582.jpg\" alt=\"181 - example control mouse mands (resize)\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"14 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/07\/Composite-AM-cross-sections-768x575.jpg\" alt=\"Composite AM cross sections\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"15 of 15\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/08\/Ti-AM-PIV.png\" alt=\"Ti AM PIV\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-left\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-right\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72c7769 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"72c7769\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6f9599b\" data-id=\"6f9599b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-216d1fb elementor-widget elementor-widget-heading\" data-id=\"216d1fb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Selected publications<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-71110df elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"71110df\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-13b0000\" data-id=\"13b0000\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a29e661 elementor-widget elementor-widget-text-editor\" data-id=\"a29e661\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;\">Grimm, J., Renteria, C., Mukhopadhyay, S., Devaraj, A., Arola, D. Stratification of fluoride upatake among enamel crystals with age elucidated by atom probe tomography.\u00a0 <em>Communications Materials <\/em><strong>5 <\/strong>(2024).\u00a0<br \/><span style=\"color: #3366ff;\"><a href=\"https:\/\/doi.org\/10.1038\/s43246-024-00709-8\" style=\"color: #3366ff;\">https:\/\/doi.org\/10.1038\/s43246-024-00709-8<\/a><\/span><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-fe587ca\" data-id=\"fe587ca\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fb2d4d4 elementor-widget elementor-widget-text-editor\" data-id=\"fb2d4d4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;\">Marquis C., Song R., Waddell S., Luong A., Arola D. Additive manufacturing with continuous ultra-high molecular weight polyethylene yarn.\u00a0\u00a0<em>Materials &amp; Design\u00a0<\/em><strong>235\u00a0<\/strong>(2023).\u00a0<a href=\"https:\/\/doi.org\/10.1016\/j.matdes.2023.112411\" style=\"color: #000000;\"><br \/><span style=\"color: #3366ff;\">https:\/\/doi.org\/10.1016\/j.matdes.2023.112411<\/span><\/a><span style=\"color: #3366ff;\">\u00a0<\/span><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-16009b9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"16009b9\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-f4b2ee3\" data-id=\"f4b2ee3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2650746 elementor-widget elementor-widget-text-editor\" data-id=\"2650746\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;\">Parker, M., Inthavong, A., Law, E., Waddell, S., Ezeokeke, N., Matsuzaki, R. &amp; Arola, D. 3D printing of continuous carbon fiber reinforced polyphenylene sulfide: Exploring printability and importance of fiber volume fraction.\u00a0<em>Additive Manufacturing<\/em>\u00a0<strong>54<\/strong>\u00a0(2022).<\/span><br \/><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #3366ff;\"><a href=\"https:\/\/doi.org\/10.1016\/j.addma.2022.102763\" style=\"color: #3366ff;\">https:\/\/doi.org\/10.1016\/j.addma.2022.102763<\/a><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-aa40204\" data-id=\"aa40204\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ac7ab3 elementor-widget elementor-widget-text-editor\" data-id=\"7ac7ab3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p class=\"MsoNormal\" style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;\">Marsico C., \u00d8ilo M., Kutsch J., Kauf M., Arola D. Vat polymerization-printed partially stabilized zirconia: Mechanical properties, reliability and structural defects.\u00a0<i>Additive Manufacturing\u00a0<\/i><b>36<\/b>\u00a0(2020).<\/span><br \/><span style=\"color: #3366ff;\"><a href=\"https:\/\/doi.org\/10.1016\/j.addma.2020.101450\" style=\"color: #3366ff;\"><span style=\"font-size: 12pt; font-family: arial, helvetica, sans-serif;\">https:\/\/doi.org\/10.1016\/j.addma.2020.101450<\/span><\/a><\/span><o:p><\/o:p><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6c219be elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6c219be\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-652d342\" data-id=\"652d342\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ab28eef elementor-widget elementor-widget-text-editor\" data-id=\"ab28eef\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;\">Ghods, S., Schur, R., Schultz, E., Pahuja, R., Montelione, A., Wisdom, C., Arola, D., Ramalu, M. Powder reuse and its contribution to porosity in additive manufacturing of Ti6Al4V.\u00a0<em>Materialia\u00a0<\/em><strong>15\u00a0<\/strong>(2021).\u00a0<\/span><br \/><span style=\"color: #3366ff;\"><a href=\"https:\/\/doi.org\/10.1016\/j.mtla.2020.100992\" style=\"color: #3366ff;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt;\">https:\/\/doi.org\/10.1016\/j.mtla.2020.100992<\/span><\/a><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9c7ed56\" data-id=\"9c7ed56\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4d04d0f elementor-widget elementor-widget-text-editor\" data-id=\"4d04d0f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;\">Arola, D., Murcia, S., Stossel, M., Pahuja, R., Linley, T., Devaraj, A., Ramulu, M., Ossa, E.A., Wang, J. The limiting layer of fish scales: Structure and properties.\u00a0<em>Acta Biomaterialia<\/em>\u00a0<strong>67<\/strong>\u00a0(2018).<\/span><br \/><span style=\"color: #3366ff;\"><a href=\"https:\/\/doi.org\/10.1016\/j.actbio.2017.12.011\" style=\"color: #3366ff;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt;\">https:\/\/doi.org\/10.1016\/j.actbio.2017.12.011<\/span><\/a><\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-af454d4 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"af454d4\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5b88b41\" data-id=\"5b88b41\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-72f6840 elementor-position-left elementor-vertical-align-middle elementor-widget elementor-widget-image-box\" data-id=\"72f6840\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/doi.org\/10.1016\/j.actbio.2024.02.038\" tabindex=\"-1\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2560\" height=\"1444\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-scaled.jpg\" class=\"attachment-full size-full wp-image-1868\" alt=\"\" srcset=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-scaled.jpg 2560w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-300x169.jpg 300w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-1024x578.jpg 1024w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-768x433.jpg 768w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-1536x866.jpg 1536w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/03\/uCT-GA-2048x1155.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/doi.org\/10.1016\/j.actbio.2024.02.038\">Characterizing the Microstructures of Mammalian Enamel by Synchrotron Phase Contrast microCT<\/a><\/h3><p class=\"elementor-image-box-description\">Carli Marsico, Jack Grimm, Cameron Renteria, Donna Guillen, Katie Tang, Viktor Nikitin, Dwayne Arola\n<br>\nThe fundamental units of enamel microstructure which give enamel its remarkable damage tolerance are discrete \u201crods\u201d roughly 1\/10th the size of a hair that extend through the full enamel thickness. However, most previous attempts to quantify the microstructure have been restricted to making inferences from two-dimensional sections of an inherently 3D structure. In this paper, we brought samples to the Advanced Photon Source at Argonne National Lab to perform synchrotron micro-computed tomography to image enamel in 3D. This allowed us to identify patterns and trends in the microstructure that are difficult to see in 2D imaging alone. These findings are essential for mimicking the hard-yet-tough performance of enamel in structural materials through 3D printing.   <\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-be87830 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"be87830\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-272d6cc\" data-id=\"272d6cc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-718581d elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"718581d\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/doi.org\/10.1016\/j.matdes.2023.112411\" tabindex=\"-1\"><img decoding=\"async\" width=\"1980\" height=\"792\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/02\/UPE-PCL-GA.png\" class=\"attachment-full size-full wp-image-1810\" alt=\"\" srcset=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/02\/UPE-PCL-GA.png 1980w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/02\/UPE-PCL-GA-300x120.png 300w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/02\/UPE-PCL-GA-1024x410.png 1024w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/02\/UPE-PCL-GA-768x307.png 768w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2024\/02\/UPE-PCL-GA-1536x614.png 1536w\" sizes=\"(max-width: 1980px) 100vw, 1980px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/doi.org\/10.1016\/j.matdes.2023.112411\">Additive manufacturing with continuous ultra-high molecular weight polyethylene yarn<\/a><\/h3><p class=\"elementor-image-box-description\">Colin Marquis, Renjie Song, Sarah Waddell, Andy Luong, Dwayne Arola\n<br>\nThis research explores using Fused Filament Fabrication (FFF) to create flexible structures with strong, flexible fibers. We developed filaments with ultra-high molecular weight polyethylene yarn (UHMWPE) in a polycaprolactone matrix (UPE\/PCL) for 3D printing. The study considered factors like spooling speed, temperature, fiber distribution, and volume fraction. Before printing, the filament had a tensile strength of 590\u00b140 MPa and fiber strength of 2.4 GPa. After printing, the tensile strength was 470\u00b160 MPa with a fiber strength of 1.9 GPa. UPE\/PCL sets a new benchmark for compliant composites in FFF, suitable for applications requiring strength and flexibility.<\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bb8f5ae elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bb8f5ae\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2853b5f\" data-id=\"2853b5f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-259d116 elementor-position-right elementor-vertical-align-middle elementor-widget elementor-widget-image-box\" data-id=\"259d116\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/doi.org\/10.3390\/ma15165617\" tabindex=\"-1\"><img decoding=\"async\" width=\"1694\" height=\"1237\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/materials-15-05617-g007-smaller.png\" class=\"attachment-full size-full wp-image-1135\" alt=\"\" srcset=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/materials-15-05617-g007-smaller.png 1694w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/materials-15-05617-g007-smaller-300x219.png 300w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/materials-15-05617-g007-smaller-1024x748.png 1024w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/materials-15-05617-g007-smaller-768x561.png 768w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/02\/materials-15-05617-g007-smaller-1536x1122.png 1536w\" sizes=\"(max-width: 1694px) 100vw, 1694px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/doi.org\/10.3390\/ma15165617\">Importance of Build Design Parameters to the Fatigue Strength of Ti6Al4V in Electron Beam Melting Additive Manufacturing<\/a><\/h3><p class=\"elementor-image-box-description\">Sean Gods, Reid Schur, Alex Montelione, Rick Schleusener, Dwayne D. Arola, Mamidala Ramulu\n<\/br>\nThe fatigue properties of metals resulting from Powder Bed Fusion (PBF) is critically important for safety-critical applications. Here, the fatigue life of Grade 5 Ti6Al4V from Electron Beam PBF was investigated with respect to several build and component design parameters using a design of experiments (DOE). Part size (i.e., diameter), part proximity, and part location within the build envelope were considered. Overall, metal in the as-built condition (i.e., no post-process machining) exhibited a significantly lower fatigue life than the machined surface condition. In both conditions, the fatigue life decreased significantly with the decreasing part diameter and increasing radial distance; height was not a significant effect in the machined condition. Whereas the surface topography served as the origin of failure for the as-built condition, the internal lack of fusion (LOF) defects, exposed surface LOF defects, and rogue defects served as the origins for the machined condition. Porosity parameters including size, location, and morphology were determined by X-ray micro-computed tomography (XCT) and introduced within regression models for fatigue life prediction. The greatest resistance to fatigue failure is obtained when parts are placed near the center of the build plane to minimize the detrimental porosity. Machining can improve the fatigue life, but only if performed to a depth that minimizes the underlying porosity.\n<\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-56bec10 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"56bec10\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-53875ae\" data-id=\"53875ae\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-07d5900 elementor-position-left elementor-vertical-align-middle elementor-widget elementor-widget-image-box\" data-id=\"07d5900\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/doi.org\/10.3390\/ma15165617\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1883\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-scaled.jpg\" class=\"attachment-full size-full wp-image-368\" alt=\"\" srcset=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-scaled.jpg 2560w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-300x221.jpg 300w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-1024x753.jpg 1024w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-768x565.jpg 768w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-1536x1130.jpg 1536w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2022\/10\/Enamel-Species-overview-2048x1507.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/doi.org\/10.3390\/ma15165617\">Mammalian enamel: A universal tissue and diverse source of inspiration<\/a><\/h3><p class=\"elementor-image-box-description\">C. Renteria, J.M. Fern\u00e1ndez-Arteaga, J. Grimm, E.A. Ossa, D. Arola\n<br>\nDental enamel is remarkable for its ability to withstand damage over decades of constant and demanding work. For this reason, there is significant interest in using the microstructure of enamel as a bio-inspiration model for damage tolerant materials. While human teeth have been extensively studied, this paper shows that depending on whether one wants high wear resistance or high damage tolerance, looking at other mammals may provide more useful insight.<\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4282df4 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4282df4\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5bbaeba\" data-id=\"5bbaeba\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e0ac23f elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"e0ac23f\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/doi.org\/10.1016\/j.actbio.2021.09.016\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"2213\" height=\"854\" src=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract.jpg\" class=\"attachment-full size-full wp-image-707\" alt=\"\" srcset=\"https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract.jpg 2213w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract-300x116.jpg 300w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract-1024x395.jpg 1024w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract-768x296.jpg 768w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract-1536x593.jpg 1536w, https:\/\/depts.washington.edu\/lampr\/wordpress\/wp-content\/uploads\/2023\/01\/mallory-graphical-abstract-2048x790.jpg 2048w\" sizes=\"(max-width: 2213px) 100vw, 2213px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/doi.org\/10.1016\/j.actbio.2021.09.016\">Strength and its variability in 3D printing of polymer composites with continuous fibers<\/a><\/h3><p class=\"elementor-image-box-description\">M. Parker, N. Ezeokeke, R. Matsuzaki, D. Arola\n<br>\nFused filament fabrication was performed on commercial and experimental filaments with continuous fibers. The strength of printed carbon fiber filament decreased from 10% to over 60%, with no correlation to fiber volume fraction. For the commercial filaments, those reinforced with Kevlar fibers underwent less degradation than with carbon fibers. Fibers near the filament surface incurred damage during printing that facilitates fiber fracture at extrusion. Damage to the filament and the reduction in reliability depends on material selection, process settings and hardware. <\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>darola@uw.edu (206) 685-8158 ROB 327 Research interests include Additive Manufacturing processes for polymers, metals and their composites, Aging-related degradation of Natural and Engineered materials, and Machine Learning for Bio-inspired Modeling Selected publications Grimm, J., Renteria, C., Mukhopadhyay, S., Devaraj, A., Arola, D. Stratification of fluoride upatake among enamel crystals with [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-26","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/pages\/26","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/comments?post=26"}],"version-history":[{"count":71,"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/pages\/26\/revisions"}],"predecessor-version":[{"id":2835,"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/pages\/26\/revisions\/2835"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/lampr\/wp-json\/wp\/v2\/media?parent=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}