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Numerically Simulating the Sandwich Plate System Structures

钢夹层板数值模拟技术(英文)
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摘要 Sandwich plate systems (SPS) are advanced materials that have begun to receive extensive attention in naval architecture and ocean engineering.At present, according to the rules of classification societies, a mixture of shell and solid elements are required to simulate an SPS.Based on the principle of stiffness decomposition, a new numerical simulation method for shell elements was proposed.In accordance with the principle of stiffness decomposition, the total stiffness can be decomposed into the bending stiffness and shear stiffness.Displacement and stress response related to bending stiffness was calculated with the laminated shell element.Displacement and stress response due to shear was calculated by use of a computational code write by FORTRAN language.Then the total displacement and stress response for the SPS was obtained by adding together these two parts of total displacement and stress.Finally, a rectangular SPS plate and a double-bottom structure were used for a simulation.The results show that the deflection simulated by the elements proposed in the paper is larger than the same simulated by solid elements and the analytical solution according to Hoff theory and approximate to the same simulated by the mixture of shell-solid elements, and the stress simulated by the elements proposed in the paper is approximate to the other simulating methods.So compared with calculations based on a mixture of shell and solid elements, the numerical simulation method given in the paper is more efficient and easier to do.
出处 《Journal of Marine Science and Application》 2010年第3期286-291,共6页 船舶与海洋工程学报(英文版)
基金 Supported by the Fundamental Research Funds for the Central Universities under Grant No.HEUCFR 1003
关键词 sandwich plate system (SPS) stiffness decomposition laminated shell element 数值模拟系统 结构 夹层板 数值模拟方法 FORTRAN语言 分解原理 剪切刚度 应激反应
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参考文献11

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