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Micromechanical prediction of the finite thermoelastic response of rubber-like matrix composites. (English) Zbl 0998.74022

Summary: We present a micromechanical analysis of the behavior of multiphase composites that consist of rubber-like matrices. Rubber-like solids are highly nonlinear thermoelastic materials that exhibit an anomalous behavior referred to as the thermoelastic inversion effect. It is shown that the derived micromechanical model is capable to predict this effect in reinforced rubber-like matrix composites. The detection of this effect in a composite and its severity depend on the type and direction of loading and the reinforcement volume ratio. Results are given that demonstrate the response to hydrostatic loading, as well as the isometric, isotonic, free thermal expansion, and isothermal behavior of nylon/rubber composites.

MSC:

74E30 Composite and mixture properties
74F05 Thermal effects in solid mechanics
74B20 Nonlinear elasticity
74M25 Micromechanics of solids
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