Investigation of strain transfer in a smart structure adhesive joint

James P. Onders; Ganapathy Naganathan

doi:10.1117/12.175219

6 May 1994 Strain transfer in a smart structure adhesive joint

James P. Onders, Ganapathy Naganathan

Proceedings Volume 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems; (1994) https://doi.org/10.1117/12.175219
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

The ability of the adhesive in a piezoceramic actuator to effectively transfer strain between the ceramic and the metal structure is critical as piezoceramics become popular as elements in mechanical actuators. As motion requirements increase, the strain transfer must be maximized from the ceramic to the metal. The objective of this work is to develop guidelines for designing metal-ceramic actuator systems using piezoceramic motor elements. Both analytical and experimental methods were employed to investigate strain transfer between the piezoceramic element and the metal. Taguchi methods were used to select optimum adhesive and base metal combinations. Following these optimum parameters, single-layer piezoceramic elements were bonded to cantilevered beams to investigate the strain transfer from an actuator to a beam. An existing analytical model of the bond layer was modified for use with the metal-ceramic actuators being tested. The strain and deflection predicted by this model were compared to the experimental results.

Citation Download Citation

James P. Onders and Ganapathy Naganathan "Strain transfer in a smart structure adhesive joint", Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); https://doi.org/10.1117/12.175219

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KEYWORDS

Epoxies

Metals

Actuators

Adhesives

Aluminum

Error analysis

Signal to noise ratio

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