PLANE PROBLEM FOR LAYERED COMPOSITES WITH PERIODIC ARRAY OF INTERFACIAL CRACKS UNDER COMPRESSIVE STATIC LOADING

摘要

The current paper addresses the problem of 2-D modelling of the onset of failure process in a layered composite with periodic array of interfacial cracks under static compression along layers. The statement of the problem is based on the most accurate approach, the model of piecewise-homogenous medium. The condition of plane strain state is considered. The shear and the extensional buckling modes are examined. The laminae are modelled by transversally isotropic material (a matrix reinforced by continuous parallel fibres). The complex non-classical failure mechanics problem is solved utilizing finite element analysis. It is found that the 0 deg-plies volume fraction, the crack length and the mutual position of cracks influence the critical strain in the composite.