CAJ | 학술논문

基于我们近年来的实验研究和数值模拟，主要概述了蜂窝材料受面内压缩时的准静态和动态坍塌行为．在准静态加载条件下，对圆胞蜂窝材料的方形试件施行了面内的双向等量压缩实验，观察到非均匀变形模式的发生和演化．为了研究加载速率的影响，对此过程也进行了有限元模拟，揭示了当加载速度增加到某一临界速度时，试件的变形由总体坍塌模式向渐进坍塌模式（即冲击波模式）转化．最后，将根据几种模型所作数值模拟得到的临界冲击速度同波的陷阱理论作了比较．
기우아문근년래적실험연구화수치모의，주요개술료봉와재료수면내압축시적준정태화동태담탑행위．재준정태가재조건하，대원포봉와재료적방형시건시행료면내적쌍향등량압축실험，관찰도비균균변형모식적발생화연화．위료연구가재속솔적영향，대차과정야진행료유한원모의，게시료당가재속도증가도모일림계속도시，시건적변형유총체담탑모식향점진담탑모식（즉충격파모식）전화．최후，장근거궤충모형소작수치모의득도적림계충격속도동파적함정이론작료비교．
Based on our experimental and numerical studies, the present paper mainly describes our findings in the quasi-static and dynamic collapse of honeycombs under in-plane compression. In quasi-static experiments, in-plane equi-biaxial compression was applied to a square block of circular honeycomb, while the onset and evolution of inhomogeneous deformation were observed. To explore the effects of the loading speed, a finite element simulation on the collapse process of a circular honeycomb block under biaxial dynamic compression is carried Out. The simulation reveals the transition from a global collapse mode to a progressive collapse mode （i.e. a shock mode）. The critical loading velocity, which marks this mode transition, is further studied numerically by various models and compared with the prediction from the wave trapping theory.