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Proceedings Paper

Exact relation between the thermal and electroelastic moduli of composite materials with emphasis on two-phase laminates
Author(s): Martin L. Dunn
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Paper Abstract

Exact relations are obtained between the effective thermoelectroelastic moduli of two-phase composite materials and their corresponding isothermal electroelastic moduli. The relations are a generalization of the well-known results of Levin and Rosen and Hashin to the inherently anisotropic coupling between the electric and elastic fields in thermoelectroelastic composites. The exact relations can be used to obtain the effective thermal expansion and pyroelectric coefficients of the composite when the effective electroelastic (elastic, piezoelectric, and dielectric) moduli are known, either by theory or experiment. Attention is focused on two- phase thermoelectroelastic laminates which admit an exact solution for the electroelastic, and thus the thermoelectroelastic, moduli. The results also provide a means to asses the internal consistency of any approximate micromechanics model that is proposed to estimate the thermoelectroelastic moduli of two-phase composite materials.

Paper Details

Date Published: 23 July 1993
PDF: 11 pages
Proc. SPIE 1916, Smart Structures and Materials 1993: Smart Materials, (23 July 1993); doi: 10.1117/12.148483
Show Author Affiliations
Martin L. Dunn, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 1916:
Smart Structures and Materials 1993: Smart Materials
Vijay K. Varadan, Editor(s)

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