Use of thickness-shear mode in constructing adaptive sandwich structures

Chin-Teh Sun; X. Richard Zhang

doi:10.1117/12.208284

8 May 1995 Use of thickness-shear mode in constructing adaptive sandwich structures

Chin-Teh Sun, X. Richard Zhang

Proceedings Volume 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems; (1995) https://doi.org/10.1117/12.208284
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

A new adaptive sandwich structure is constructed using the shear mode of piezoelectric materials. A comparative study of the sandwich structure and the corresponding surface- mounted actuation structure is performed using finite element analysis. The effects of actuator length and location on actuation performance of the structures are studied. The stress distributions under mechanical and electrical loads are investigated for both the sandwich beam and the surface-mounted activation beam. It is shown that the stress level within the actuators is more severe for the surface-mounted actuation beam than for the sandwich. Also, the interface-stress distribution between actuator and host structure is analyzed. It is shown that sandwich construction offers many advantages over conventional surface-mounted actuation constructions.

Citation Download Citation

Chin-Teh Sun and X. Richard Zhang "Use of thickness-shear mode in constructing adaptive sandwich structures", Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); https://doi.org/10.1117/12.208284

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