Conclusions
The residual thermal stresses in the constituents of a fiber-reinforced epoxy have been predicted using a concentric three-cylindrical (fiber-interphase-matrix) assemblage analysis. The interphase has been treated as a region with a variable Young's modulus — a direct consequence of the changes in the microstructure of the matrix near the fiber surface. The Navier equations of elasticity have been solved in series form solutions for each type of property variation.
A parametric study is used to demonstrate the fact that changes in the interphase properties can drastically affect the residual stresses in the interphase.
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Published in Mekhanika Kompozitnykh Materialov, Vol. 30, No. 5, pp. 579–589, September–October, 1994.
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Kushnevsky, V., Wacker, G., Chate, A. et al. The effect of interphase on residual thermal stresses. 1. Single fiber composite materials. Mech Compos Mater 30, 417–425 (1995). https://doi.org/10.1007/BF00616769
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DOI: https://doi.org/10.1007/BF00616769