Initial Yield Surface of a Unidirectionally Reinforced Composite
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This paper shows the calculation of the initial yield surface of a unidirectionally reinforced composite subjected to longitudinal normal, transverse normal, and longitudinal shear loadings. The composite is composed of boron filaments arranged in a periodic square array and embedded in a matrix of 6061 aluminum alloy. A finite-element method is employed to obtain solutions for stresses throughout the composite. The von Mises yield criterion is used to calculate the elastic limit of the local microscopic combined stresses in the composite
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