Residual Stresses in Fiber-Reinforced Ceramics due to Thermal Expansion Mismatch |
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Authors: | Meinhard Kuntz Bernhard Meier Georg Grathwohl |
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Affiliation: | Institut fur Keramik im Maschinenbau, University of Karlsruhe, D-7500 Karlsruhe 1 Germany |
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Abstract: | Principles for the calculation of residual stresses due to thermal expansion mismatch and previous solutions are reviewed. A general model for this subject is proposed. Considering the effective thermoelastic properties of a unidirectional composite in axial and transverse directions allows a more comprehensive treatment of the residual stress situation in fiber-reinforced composites. Parameter variations show the important influence of the thermomechanical properties of an interfacial layer, which is disregarded in most of the conventional calculations. |
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