Control of sonic fatigue for high-speed flight vehicles using shape memory alloys

Chuh Mei; Zhiwei Zhong; Travis L. Turner

doi:10.1117/12.310666

16 June 1998 Control of sonic fatigue for high-speed flight vehicles using shape memory alloys

Chuh Mei, Zhiwei Zhong, Travis L. Turner

Proceedings Volume 3326, Smart Structures and Materials 1998: Industrial and Commercial Applications of Smart Structures Technologies; (1998) https://doi.org/10.1117/12.310666
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

A finite element method for the analysis of thermal deflection and random response is presented for shape memory alloy (SMA) fiber reinforced composite plates subjected to thermal and acoustic loads. The formulation considers the temperature dependent nonlinear material properties of SMAs, the initial deflection and initial stresses, and the geometrical nonlinearity of large thermal deflections. A two-step solution procedure for the combined thermal and acoustic loading is employed consisting of an incremental method for the material nonlinearities and a Newton-Raphson iteration method for prediction of panel responses. Examples are given to show that it is feasible to eliminate the large thermal deflection completely and to reduce the dynamic random response within a given operating temperature range with the proper percentages of SMA volume fraction, prestrain and alloy composition.

Citation Download Citation

Chuh Mei, Zhiwei Zhong, and Travis L. Turner "Control of sonic fatigue for high-speed flight vehicles using shape memory alloys", Proc. SPIE 3326, Smart Structures and Materials 1998: Industrial and Commercial Applications of Smart Structures Technologies, (16 June 1998); https://doi.org/10.1117/12.310666

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