The effective thermoelectroelastic properties of microinhomogeneous materials

✍ Scribed by V.M. Levin; M.I. Rakovskaja; W.S. Kreher

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 631 KB
• Volume: 36
• Category: Article
• ISSN: 0020-7683
• DOI: 10.1016/s0020-7683(98)00131-0

✦ Synopsis

The paper is concerned with composite materials which consist of a homogeneous matrix phase with a set of inclusions uniformly distributed in the matrix[ The components of these materials are considered to be ideally elastic and exhibit piezoelectric properties[ One of the variants of the self!consistent scheme\ the E}ective Field Method "EFM# is applied to calculate e}ective dielectric\ piezoelectric and thermoelastic properties of such materials\ taking into account the coupled electroelastic e}ects[ At _rst the coupled thermoelectroelastic problem for a homogeneous medium with an isolated inclusion is solved[ For an ellipsoidal inclusion and constant external _eld the solution of this problem is found in a closed analytic form[ This solution is then used in the EFM to derive the e}ective thermoelectroelastic operator for the composite containing a random array of ellipsoidal inclusions[ Explicit formulae for the electrothermoelastic constants are given for composites\ reinforced by spheroidal inclusions[ Þ 0888 Elsevier Science Ltd[ All rights reserved