The structural response of two-ply cord-rubber composite laminates subjected to torsional loading is investigated using non-linear three-dimensional finite element analysis. The present model treats a two-ply composite as an equivalent three/six-ply system with rubber and cord-rubber elements. The present finite element model is validated by comparing the results obtained to the existing experimental and analytical solutions. The effects of torque and bias angle on twist angle, axial displacement, coupled strain ratio, and interply and interface shear stresses are presented. Also, the effects of interply thickness and rubber elasticity were studied. The presented results illustrate the torsional behaviour of two-ply cord-rubber composites from three-dimensional analysis.
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