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首页> 外文期刊>International Journal of Solids and Structures >SHEAR DEFORMATION MODELS FOR LARGE-STRAIN SHELL ANALYSIS
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SHEAR DEFORMATION MODELS FOR LARGE-STRAIN SHELL ANALYSIS

机译：大型壳分析的剪切变形模型

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摘要

The objective is the theoretical and numerical simulation of large-strain phenomena of rubber-like shells by means of shear deformation models. The development starts with a general applicable shell model constructed on the basis of a quadratic displacement approximation which involves two thickness stretching parameters. This model is then coupled with incompressible material models of Mooney-Rivlin and neo-Hookean types. Material incompressibility is described by two-dimensional constraints considered at the element level as subsidiary conditions. A special care is given to the stress prediction in the presence of large-strains. After transformation of the theoretical model into an incremental formulation a four-node isoparametric finite element is derived. Examples are finally given to demonstrate the ability of this model to deal with very strong deformations and to predict the related stresses. (C) 1997 Elsevier Science Ltd. [References: 33]
机译：目的是通过剪切变形模型对橡胶壳的大应变现象进行理论和数值模拟。该开发从基于二次位移近似构造的通用壳模型开始，该二次位移近似包括两个厚度拉伸参数。然后，此模型与Mooney-Rivlin和Neo-Hookean类型的不可压缩材料模型耦合。材料的不可压缩性由在元素级别视为辅助条件的二维约束描述。在存在大应变时要特别注意应力预测。将理论模型转换为增量公式后，得出了四节点等参有限元。最后通过实例说明了该模型处理非常强的变形并预测相关应力的能力。 （C）1997 Elsevier Science Ltd. [参考：33]

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