爆炸载荷下砌体墙破坏过程模拟研究  

Numerical Analysis of Damage to Brick Walls Subjected to Blast Loading

作　　者：张彦春[1,2] 王仲琦[1] 尤祖明[1] 白春华[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]中国刑事警察学院,辽宁沈阳110035

出　　处：《北京理工大学学报》2010年第10期1139-1142,共4页Transactions of Beijing Institute of Technology

基　　金：国家"七○九"科技专项计划(2006FK130003);国家重点实验室自主研究课题(ZDKT08-2-2)

摘　　要：为分析爆炸案件现场中砌体墙破坏的破坏过程及影响因素,采用AUTODYN程序对砌体墙在爆炸载荷作用下的动态响应进行了数值模拟,得到了砌体墙表面的载荷分布以及爆炸破坏形成炸洞的变化规律.计算结果表明,砌体墙在爆炸载荷下会形成炸洞;药量越大,炸洞尺寸也增大,但随着药量的继续增加,炸洞尺寸增大的速度变慢.To explore the process and factors of damage to brick walls at the scene of blast case,the AUTODYN program is used to simulate the dynamic response of brick walls under blast loading.The distribution of blast pressure on brick walls and variation of hole induced by explosion are obtained.The results show that,blast loading will make a hole on the brick walls;the more the amount of explosives is,the more increase the size of hole is.With the amount of explosives continues to increase,the rate of increase of hole size will get slow.

关 键 词：数值模拟 爆炸 砌体墙 

分 类 号：O383.2[理学—流体力学]