Prediction of nominal stress-strain curves of a multi-layered composite material by FE analysis

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Abstract

In order to predict the nominal stress-strain (S-S) curve in tensile test for a multi-layered composite material consisting of a commercial purity titanium (hereafter, CP-Ti) with texture and an isotropic polycrystalline Ti-15V-3Cr-3Sn-3A1 (hereafter, Ti-15-3) alloy, threedimensional finite element (FE) analysis with an equal strain hypothesis is employed. The validity of the present approach is verified by comparing the FE prediction with the tensile test. The results show that the yield stress and tensile stress of multi-layered composite material can be successfully predicted by FE analysis with the deviation smaller than 5%, and the uniform elongation of multi-layered composite material can be well predicted with the deviation smaller than 1%The FE analysis also shows that the tension stress normal to interface between components is introduced at the onset of localized necking of multi-layered composites. ©2010 The Japan Institute of Metals.

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Li, L., Iwasaki, S., Yin, F., & Nagai, K. (2010). Prediction of nominal stress-strain curves of a multi-layered composite material by FE analysis. Materials Transactions, 51(12), 2188–2195. https://doi.org/10.2320/matertrans.M2010211

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