【作者】 孙远翔； 赵迁； 宁建国；

【Author】 SUN Yuan-xiang,ZHAO Qian,NING Jian-guo (State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology, Beijing 100081,China)

【机构】 北京理工大学爆炸科学与技术国家重点实验室；

【摘要】 本文利用LS-DYNA有限元软件对混凝土材料五种冲击速度下的SHPB实验进行了数值模拟研究。通过与实验数据做比较,例如入射应力幅值、试件中应力幅值、冲击速度对试件破坏形态的影响、透射波形等,说明文中采用的数值模拟方法是有效的,可以对混凝土在冲击载荷下力学性能进行较为准确的数值模拟。更多还原

【Abstract】 In this paper,the SHPB experiment of concrete under five impact speeds is simulated by Finite Element code ANSYS/LS-DYNA.Through comparing with the experiment data,include the breadth value of incident stress,the breadth value of stress in concrete,the impact speeds to the affection of destroy conformation of concrete and the shape of transmission wave,we can draw the conclusion that the numerical simulation of this paper is effective.By this method,we can simulate the experiment of concrete under the impact load well.更多还原