| 受冲板壳结构的弹塑性力学特性分析 |
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| 引用本文： | 雷正保,钟志华.受冲板壳结构的弹塑性力学特性分析[J].振动工程学报,2000,13(1):78-83. |
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| 作者姓名： | 雷正保 钟志华 |
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| 作者单位： | 长沙交通学院汽车系!长沙410076(雷正保)，湖南大学机械与汽车工程学院!长沙410082(钟志华) |
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| 基金项目： | 国家自然科学基金! (编号 :5 972 5 5 11)，博士点基金! (编号 :980 5 32 0 8)，交通部重点科技攻关 !(95 - 0 6 -0 2 - 13)资助项目 |
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| 摘 要： | 采用基于随动坐标系的 4节点假设应变场壳单元及显式有限元方法分析受冲板壳结构的弹塑性力学特性。材料模型采用弹塑性等向强化模型 ,接触搜寻采用一体化接触搜寻方法 ,接触力由罚参数法计算 ,算例表明 :该方法简明、直观、快捷、方便
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| 关 键 词： | 折板结构 变形 弹塑性 有限元 板壳 |
An Analysis Method for the Mechanical Properties of Plate -Shell Structures with Impact Loading Acted on in Elastic-Plastic Large Deformation Processes |
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| Lei Zhengbao,Zhong Zhihua.An Analysis Method for the Mechanical Properties of Plate -Shell Structures with Impact Loading Acted on in Elastic-Plastic Large Deformation Processes[J].Journal of Vibration Engineering,2000,13(1):78-83. |
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| Authors: | Lei Zhengbao Zhong Zhihua |
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| Affiliation: | Lei Zhengbao 1 Zhong Zhihua 2 |
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| Abstract: | A dynamic explicit type finite element method is used to analyse the mechanical properties of plate shell structures under impact loading and elastic plastic large deformations. The 4 node quadrilateral shell element based on the formulation of the assumed strain field method and co rotational coordinate systems are used. The elastic plastic isotropic hardening material model is employed. The single surface contact algorithm is used to deal with the contact interfaces and the contact force is evaluated by penalty method. Several numerical examples are given. |
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| Keywords: | folded structures deformation elastic -plastic FEM plate-shell |
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