考虑变形模量劣化的应变软化模型在 FLAC3D中的开发与验证
李英杰 ,张顶立 ,刘保国
Development and verification of strain-softening model considering deformation modulus degradation in FLAC3D
LI Ying-jie , ZHANG Ding-li , LIU Bao-guo 
岩土力学 . 2011, (S2): 647 -652 .