– Sandwich disbond test standards supporting the ongoing CMH-17 efforts for Rev. H – Evaluation of analysis used by industry for Category 2 and 3 large in-plane damage capability of sandwich structures, including complex structural loading – Development of building block test standards & related data analysis procedures to gain the structural data needed to […]
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 […]
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 […]
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.
This is a Boeing-funded project though the AMTAS center, involving shear lap coupons exposed to hot water and creep stress.
To ensure the longevity of the commercial aircraft fleet, the long term durability of primary aircraft structure must be understood.
The purpose of this proposal is to develop a new design approach to quantify the reliability of aerospace structures. In this approach, the “Level of Safety (LOS) of an existing structural component is determined based on a probabilistic assessment of in-service accumulated damage and the ability of non-destructive inspection methods to detect such damage. Specifically, […]
We propose to the FAA to develop analytical, computational and experimental capabilities to address “Combined Global/Local Variability and Uncertainty in Integrated Aeroservoelasticity of Composite Aircraft”.
The primary objective of the proposed work is to verify the reliability and sensitivity of solid-state electrochemical sensors for detecting surface contaminants and moisture on pre-bond surfaces. Sensors, made using the novel concepts applied to solid-state electrochemical materials, were found to be very sensitive in experiments with polyester peel ply samples. However, the method has […]
The goal of this project is to develop a software tool that can be used in the field to optimize the repair of composites by ensuring that the temperature at the repair can be maintained at a specified level for the required duration.
The proposed research will develop a set of standardized procedures for the experimental and numerical characterization of the crush behavior of composite materials.
The objective of this research project was to investigate candidate damage tolerance test methodologies for sandwich composites and to propose specific methodologies and configurations for standardization. Three candidate test configurations are currently under evaluation. The first methodology utilizes an end-loaded Compression After Impact (CAI) test configuration. Initial evaluations have been performed using sandwich configurations with […]
The purpose of this research is to determine if Fourier transform infrared (FTIR) spectroscopy can be used to quantify incipient thermal damage (ITD) in aerospace composites.
Discontinuous Fiber Composites (DFCs) represent a viable solution for the cost-effective design of secondary structures and components for aeronautical applications.