摘要
针对地下爆炸波的基本特点,提出了一种适用于干岩并便于嵌入爆炸应力波数值计算的弹塑性连续损伤本构模型。该模型考虑了含孔隙和微裂纹岩石的剪胀效应和软化效应,并根据岩石不同变形阶段的特征,给出了不同的屈服面形式和损伤演化方程。地下强爆炸波的数值模拟计算结果显示,所建模型是合理的和有效的。
Based on the features of underground explosion-induced wave, a new elastoplastic continuously damaged constitutive model was developed. The damage evolution equations and the yield functions for the model were established on the basis of different deformation behavior, and both the effects of distortional dilation and damage softening were included. The results of numerical simulations for underground explosion-induced wave indicate that the proposed model is effective and available.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第13期2149-2156,共8页
Chinese Journal of Rock Mechanics and Engineering
基金
武器装备预研基金项目(51479010303ZK0102)
人防"十五"科研资助项目
