| 爆炸荷载作用下工字钢梁非线性有限元分析 |
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| 引用本文： | 刘明路,赵金城,赖鹏邦,靳猛.爆炸荷载作用下工字钢梁非线性有限元分析[J].钢结构,2009,24(3):36-40. |
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| 作者姓名： | 刘明路 赵金城 赖鹏邦 靳猛 |
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| 作者单位： | 上海交通大学土木工程系,上海,200240;上海交通大学土木工程系,上海,200240;上海交通大学土木工程系,上海,200240;上海交通大学土木工程系,上海,200240 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 利用大型通用有限元软件ABAQUS对工字钢梁在爆炸荷载作用下的动力响应进行数值计算,分析过程中考虑了应变速率对钢材性能的影响。通过调整爆炸荷载的施加方式和工字钢梁支座边界等参数,得到了爆炸荷载作用下,工字钢梁在不同条件下的跨中位移响应、破坏形态、跨中Mises应力变化与时间的关系和梁中塑性耗散能的变化,并对结果进行了分析比较。
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| 关 键 词： | 爆炸荷载 应变率 破坏形态 有限元 塑性耗散能 |
NONLINEAR FINITE ELEMENT ANALYSIS OF I-SHAPED STEEL BEAM UNDER EXPLOSIVE LOAD |
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| Liu Minglu,Zhao Jincheng,Lai Pengbang,Jin Meng.NONLINEAR FINITE ELEMENT ANALYSIS OF I-SHAPED STEEL BEAM UNDER EXPLOSIVE LOAD[J].Steel Construction,2009,24(3):36-40. |
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| Authors: | Liu Minglu Zhao Jincheng Lai Pengbang Jin Meng |
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| Affiliation: | Department of Civil Engineering;Shanghai Jiaotong University;Shanghai 200240;China |
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| Abstract: | Numerical calculation on dynamic response of I-shaped steel beam under explosive load was performed and the influence of strain rate on steel performance was considered during the analysis by ABAQUS software.Through adjusting the parameters of applied mode of explosive load and support conditions,some results such as response of middle span displacement,failure modes,relationship between Mises stress of middle span and time were obtained for different conditions,as well as the change of plastic dissipation ... |
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| Keywords: | explosive load strain rate failure mode finite element plastic dissipation energy |
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