作者: B.V. Sankar , V.S. Rao
DOI: 10.1177/073168449301200208
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摘要: Laminate constitutive relations are derived for a composite plate, the midplane of which is offset from reference x-y plane. The equations similar to conventional laminates except that definition [A], [B], and [D] matrices different. This offsetting procedure convenient finite element modeling delaminations. Starting with three-dimensional J-integral, an expression strain energy release rate delaminations derived. Unlike crack closure method, G can be one single computation; further, distribution along delamination front also obtained. method illustrated anisotropic DCB specimen