Abstract
The linear dynamic elasticity problem formulation and solution for a generally asymmetric sandwich beam/wide plate consisting of orthotropic core and face sheets subjected to blast loading is presented. The Laplace transform is used to obtain ordinary differential equations in the complex Laplace space (the variable being the through-thickness coordinate), which are subsequently solved in closed form for a simply supported beam. The time response is then obtained by a numerical inverse Laplace transform by using the Euler method. The results for realistic material and blast cases for the transient displacements and face sheet/core interfacial transverse normal and shear stresses are presented. A comparison of the elasticity results is also made with first-order shear and high-order sandwich panel theories. This solution can be used as a benchmark in assessing the accuracy of advanced sandwich panel theories.
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