Abstract
An axisymmetric model for the thermally induced stresses and strains in a deformable matrix continuous fiber-reinforced composite is developed. The model allows for a temperature- and strain-dependent matrix flow stress and is numerically implemented using a von Mises flow law. The model implementation permits the study of an arbitrary number of temperature cycles. This model is compared to a simple one-dimensional model that has been used in several pre-vious analyses. The models show good qualitative agreement, but there are important differ-ences, and the magnitude of the discrepancy depends sensitively on the properties of the composite. These models can be applied in analyzing experimentally measured strainvs tem-perature hysteresis loops to reveal thein situ mechanical properties of the deformable matrix. The models can also be applied to the design of continuous fiber-reinforced composites that will not suffer thermally induced cyclic-plastic deformation.
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Formerly Postdoctoral Researcher with the Department of Materials Science and Engineering, Ohio State University, Columbus, OH
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Zhang, H., Anderson, P.M. & Daehn, G.s. Analysis of thermally induced stress and strain in continuous fiber- reinforced composites. Metall Mater Trans A 25, 415–425 (1994). https://doi.org/10.1007/BF02647987
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DOI: https://doi.org/10.1007/BF02647987