This article deals with the non-linear behaviour of woven fibre metal laminates (WFMLs). A theoretical micromechanical model has been proposed for the plain-wave fabric-reinforced flexible composite with two surface-bonded metal layers under biaxial loading. The constitutive equations are derived through a strain energy approach and energy variation theorem based on the microstructure of composites. The modelling strategy starts with a geometrical description of the yarn and the unit cell and fibres are assumed to be in a sinusoidal shape. Meanwhile, a simple and conventional analytical technique is applied to predict the tensile properties of WFMLs. Stress—strain behaviour of such structure plates under uniform uniaxial loading are illustrated in figures. The proposed integrated micromechanical model shows excellent agreement with the three-dimensional finite-element results. Finally, a parametric study is performed using the presented models to investigate the effect of thickness of metal layers on the elastic properties of the composite.
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