Application study on aircraft structures of CFRP laminates with embedded SMA foils

Toshimichi Ogisu; Masato Nomura; Norio Ando; Junji Takaki; Nobuo Takeda

doi:10.1117/12.475085

9 July 2002 Application study on aircraft structures of CFRP laminates with embedded SMA foils

Toshimichi Ogisu, Masato Nomura, Norio Ando, Junji Takaki, Nobuo Takeda

Proceedings Volume 4698, Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies; (2002) https://doi.org/10.1117/12.475085
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

This paper reports some research results for the application study of the smart materials an structural using Shape Memory Alloy (SMA) foils. First, the authors acquired the recovery strain of CFRP laminates generated by the recovery stress of the pre-strained SMA foils. Then, the quasi-static load-unload tests were conducted using several kinds of quasi-isotropic CFRP laminates with embedded SMA foils. Micro-mechanics of damage behavior due to the effects of the recovery strain and the first transverse crack strain were discussed. The improvement of maximum 40 percent for the onset strain of the transverse cracks and maximum 60 percent for the onset strain of delamination were achieved for CFRP laminates with embedded pre-strained SMA foils compared with standard CFRP laminates. Furthermore, the authors conducted the structural element test for application to actual structures. Testing technique and the manufacturing technique of the structural element specimen were established.

Citation Download Citation

Toshimichi Ogisu, Masato Nomura, Norio Ando, Junji Takaki, and Nobuo Takeda "Application study on aircraft structures of CFRP laminates with embedded SMA foils", Proc. SPIE 4698, Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies, (9 July 2002); https://doi.org/10.1117/12.475085

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