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工业建筑  2011 

混凝土结构倒塌分析中的块体碰撞力学模型

DOI: 10.13204/j.gyjz201101015, PP. 57-63

Keywords: 混凝土块体,数值模拟,LS-DYNA,碰撞模型

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Abstract:

依据30对混凝土立方块体的单摆和垂直轨道面-面对心碰撞试验结果,利用LS-DYNA有限元程序数值再现试验过程,面-面对心试验数值给予扩展和补充。同时进行了两立方块体面-面非对心、线-面、点-面、线-线及改变块体形状的板板碰撞数值试验。根据物理和数值试验结果,经过回归分析得到描述两混凝土块体间不同碰撞模式下碰撞性能的力学模型。

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