The Effect of Surface Treatment on the Degradation of Composite Adhesives
To ensure the longevity of the commercial aircraft fleet, the long term durability of primary aircraft structure must be understood. The degradation of metals and their attachments (mechanical and adhesive) has been rigorously studied over the years. The introduction of composite materials in aerospace applications has presented challenges as methodologies that have successfully been used for metals do not always produce reliable results with new materials. This project will consider the effect of surface treatments on composite adherends and accelerated test methods that may be used to reliably compare their long term degradation. Follow-on projects will consider improving durability using nano-reinforced adhesives.
AF555 Hot/Wet Creep Response
This is a Boeing-funded project though the AMTAS center, involving shear lap coupons exposed to hot water and creep stress.
We have examined the failure surfaces of the adhesive using SEM. The failure was dominated by adherend failure at the fiber interface, the portion is which increased slightly with moisture content.
Course Development: Maintenance of Composite Aircraft Structures
The goal of this proposal is to develop, in conjunction with AMTAS academic and industry partners, a syllabus and course material for a short course addressing the maintenance of composite aircraft structures.
Training Strategy Development—Composite Materials Education for Aircraft Practitioners
The objectives of this project are to:
- Work with industry, other government agencies, and academia to ensure safe and efficient deployment of composite technologies used in existing and future aircraft
- Update policies, advisory circulars, training, and detailed background used to support standardized composite practices
Practitioners will be educated through technology knowledge transfer. The technology knowledge base consists of:
- Databases. Handbooks, Manuals
- Industry practices
- Practical insights
- Training that is relevant to industry practices and common understandings
- Research that is relevant to industry practices
Advanced Materials & Manufacturing Training Innovation Center (AMMTIC)
AMMTIC's mission is to develop and implement a strategic business plan that supports a self-sustaining advanced materials and manufacturing innovation facility and organization in Snohomish County and in Washington State that integrates public and private research and training initiatives designed to transform the aerospace and other advanced manufacturing workforce and keeps the United States globally competitive. This project will continue to build upon the current composite, aerospace and other manufacturing training programs currently offered through Edmonds Community College and its affiliates through the joint FAA Center of Excellence partnership. |
