爆炸荷载作用下单层钢化玻璃破坏状态的理论预测方法  

A Theoretical Prediction Method for Failure State of Single-Layer Tempered Glass Under Blast Loading

作　　者：王澍霏 钟巍[1,2] 王智环 姚成宝[1] 贾雷明 田宙[1] WANG Shu-fei;ZHONG Wei;WANG Zhi-huan;YAO Cheng-bao;JIA Lei-ming;TIAN Zhou(Northwest Institute of Nuclear Technology,Xi’an 710024,China;School of Mathematical Sciences,Peking University,Beijing 100084,China)

机构地区：[1]西北核技术研究所,西安710024 [2]北京大学数学科学学院,北京100084

出　　处：《现代应用物理》2020年第3期85-91,共7页Modern Applied Physics

摘　　要：利用弹性薄板弯曲的小挠度理论计算爆炸荷载作用下单层钢化玻璃的动力响应,选择最大伸长线应变理论作为钢化玻璃的破坏准则,结合场地实验结果确定单层钢化玻璃破坏的应变阈值,建立了爆炸荷载作用下单层钢化玻璃破坏状态的理论预测方法,并将理论预测结果同数值模拟计算结果和场地实验结果进行了比较。结果表明,三者间的差异较小,证明本文的理论预测方法能够准确预测单层钢化玻璃在爆炸荷载作用下的破坏时间和破坏状态。To predict the damage effect of a single-layer tempered glass under blast loading,the small deflection theory of thin elastic plate bending is used to calculate the dynamic response of the glass.The strain threshold of the single-layer tempered glass is determined by using the strain theory of maximum elongation line as the failure criterion of the tempered glass.A theoretical prediction method for the failure state of the single-layer tempered glass is established,and the results are compared with those by numerical simulation and field experiments.The results show that the deviations are small,showing that the method can accurately predict the failure time and state of the single-layer tempered glass under blast loading.

关 键 词：爆炸荷载 单层钢化玻璃 理论预测方法 破坏状态 

分 类 号：O383[理学—流体力学]