A critical evaluation of two Reissner–Mindlin type models for composite laminated plates |
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Authors: | Wenbin Yu Jun-Sik Kim Dewey H Hodges Maenghyo Cho |
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Institution: | aUtah State University, Logan, Utah 80322-4130, USA;bThe Pennsylvania State University, University Park, Pennsylvania 16802, USA;cGeorgia Institute of Technology, Atlanta, Georgia 30332-0150, USA;dSeoul National University, Seoul, South Korea |
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Abstract: | The purpose of this paper is to critically evaluate two Reissner–Mindlin type theories developed recently for composite laminated plates, namely, VAPAS (Variational Asymptotic Plate And Shell analysis) and EFSDT (Enhanced First-Order Shear-Deformation Theory). The fundamentals of both models are briefly summarized along with their unique features in comparison to most other existing models. The similarities and differences between VAPAS and EFSDT are also examined. Exact solutions of three-dimensional elasticity theory for the cylindrical bending problems are used as the arbiter to assess the accuracy of both models. Such a systematic assessment demonstrates that both models have achieved an excellent compromise between the layer-wise theories, which are accurate but computationally demanding, and the first-order shear deformation theories, which are computationally cheap but not accurate. |
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Keywords: | Composite plates EFSDT Reissner– Mindlin Shear deformation theory Variational asymptotic method VAPAS |
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