4/16/2023 0 Comments Axisvm x4 crackThe accuracy of the zigzag theory is assessed for composite and sandwich plates with variousīoundary conditions and aspect ratio by comparing the finite element results with the 3D elasticity analytical and finite Theory, for composite and sandwich plates, establishes the superiority of the present element in respect of simplicity, accuracyĪnd computational efficiency. The present results for the natural frequencies with those of a recently developed triangular element based on the zigzag for simply supported plates with the analytical Navier solution of the zigzag theory. ![]() The finite element formulation is validated byĬomparing the results. The element is free from the shear locking. Present authors for the static analysis of composite and sandwich plates is extended for dynamics and assessed for its performanceįor the free vibration response. ![]() The new improved discrete Kirchhoff quadrilateral element based on the third-order zigzag theory developed earlier by the
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