| 折叠式夹芯层结构耐撞性能研究 |
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| 引用本文： | 张延昌,王自力,张世联.折叠式夹芯层结构耐撞性能研究[J].船舶力学,2010(Z1). |
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| 作者姓名： | 张延昌 王自力 张世联 |
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| 作者单位： | 上海交通大学船舶海洋与建筑工程学院;江苏科技大学船舶与海洋工程学院; |
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| 摘 要： | 折叠结构是将平板按有规律的线系网格进行局部褶皱而得到的立体结构,是一种新颖的夹芯层结构,可以提高结构吸能特性,改善结构的耐撞性能。文章利用非线性软件MSC.Dytran数值仿真分析了折叠式夹芯层结构在碰撞载荷作用下的力学行为,评估其平均压皱强度及吸能特性;研究了结构参数尺寸对耐撞性能的影响。分析表明,折叠式夹芯层结构在碰撞载荷作用下具有良好的吸能特性,是理想的吸能单元;各结构参数对结构耐撞性能产生不同程度的影响,进行结构参数优化研究可进一步提高结构的吸能。
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| 关 键 词： | 折叠式夹芯结构 耐撞性能 比能 平均压皱强度 数值仿真 |
Simulation analysis of folded core structure under dynamic load |
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| ZHANG Yan-chang ,WANG Zi-li ,ZHANG Shi-lian.Simulation analysis of folded core structure under dynamic load[J].Journal of Ship Mechanics,2010(Z1). |
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| Authors: | ZHANG Yan-chang WANG Zi-li ZHANG Shi-lian |
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| Institution: | 1 School of Naval Architecture;Ocean and Civil Engineering;Shanghai Jiao Tong University;Shanghai 20030;China;2 School of Naval Architecture & Ocean Eng.;Jiangsu University of Science and Technology;Zhenjiang 212003;China |
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| Abstract: | The folded core structure,folded from different sheet material according to regular line type,is an innovative core structure for sandwich panel,which can improve the energy absorption ability and the crashworthiness of structure.In this paper,the mechanical behavior of folded structure under impact load is simulated through the non-linear finite element program,the mean crushing strength and energy absorp-tion characteristic are studied.It is indicated that the folded core structure is an ideal energy abso... |
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| Keywords: | folded core structure crashworthiness specific energy mean crushing strength numerical simulation |
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