Probabilistic Failure Prediction under Combined in-plane Compression-Shear Loading for Unidirectional Fiber Reinforced Composites

One of the design limiting failure for fiber reinforced composites (FRC) is under compression loads, showing failure under compression at as low as two thirds of their tensile strengths. Over the past few decades numerous analytical, experimental and numerical investigations have explored different dimensions of the problem [1]. It is now widely accepted that the dominant factors behind compression dominated failure modes are manufacturing induced fiber misalign-ments and the nonlinear matrix material behavior. Uncertainty regarding fiber misalignment leads to variations in strengths under compression dominated loads [2]. In order to exploit the maximum potential of FRCs, it is essential to predict the failure under axial compression and compression dominated combined loads reliably. In order to advance the understanding of the problem in this direction