Effective Impulse for Fully Clamped Rectangular Plates Under Internal Blast Loading  

作　　者：Xianben Ren Xiaoqiang Zhang Zhixin Huang Ying Li 

机构地区：[1]State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China [2]Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures,Institute of Advanced Structure Technology,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Acta Mechanica Solida Sinica》2022年第3期481-494,共14页固体力学学报（英文版）

基　　金：The authors would like to thank the support from the National Natural Science Foundation of China under Grant No.11802030.

摘　　要：Under internal blast loading,the response of a beam or plate is highly correlated with the phenomenon of saturated impulse,which governs the deflection of the structure.This paper aims to investigate the phenomenon of saturated impulse for fully clamped rectangular plates subjected to internal blast loading.Based on the rigid,perfectly plastic assumption,the relationship between saturation duration and saturation deflection is derived.Influences of the peak shock wave,the duration of shock wave and the peak quasi-static pressure loading on saturation duration and saturation deflection are discussed.It is found that there is a critical duration for the internal blast impulse to reach saturation,and beyond this duration,the deflection of plate will no longer increase as the loading increases further.The saturation deflection and saturation duration both exhibit regular variation patterns with the changes of the dimensionless peak shock wave,the duration of shock wave and the peak quasi-static pressure loading.

关 键 词：Internal blast Effective impulse Rectangular plate Effective acting time Simplified model 

分 类 号：O34[理学—固体力学]