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Self-Repairing Fatigue Damage in Metallic Structures for Aerospace Vehicles Using Shape Memory Alloy Self-healing (SMASH) TechnologyThis DAA is for the Phase II webinar presentation of the ARMD-funded SMASH technology. A self-repairing aluminum-based composite system has been developed using liquid-assisted healing theory in conjunction with the shape memory effect of wire reinforcements. The metal matrix composite was thermodynamically designed to have a matrix with a relatively even dispersion of low-melting phase, allowing for repair of cracks at a pre-determined temperature. Shape memory alloy wire reinforcements were used within the composite to provide crack closure. Investigators focused the research on fatigue cracks propagating through the matrix in order to optimize and computer model the SMASH technology for aeronautical applications.
Document ID
20150005789
Document Type
Conference Paper
Authors
Wright, M. Clara
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Manuel, Michele
(Florida Univ. Gainesville, FL, United States)
Wallace, Terryl
(NASA Langley Research Center Hampton, VA, United States)
Newman, Andy
(NASA Langley Research Center Hampton, VA, United States)
Brinson, Kate
(Northwestern Univ. Evanston, IL, United States)
Date Acquired
April 16, 2015
Publication Date
March 18, 2015
Subject Category
Metals And Metallic Materials
Composite Materials
Report/Patent Number
KSC-E-DAA-TN21605
Meeting Information
Meeting: ARMD NARI Seedling Phase II Webinar
Location: Virtual
Country: United States
Start Date: March 18, 2015
End Date: March 19, 2015
Sponsors: NASA Headquarters
Funding Number(s)
OTHER: ARMD Seedling Phase II
CONTRACT_GRANT: NNX13AR53A
CONTRACT_GRANT: NNX13AR52A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
fatigue
shape memory alloy
self-repair
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