摘要
本文建立了损伤理论与强度准则相结合的本构模型，在宏观裂缝出现以前用损伤力学理论及宏观裂缝出现以后仍考虑损伤用强度理论进行从损伤→开裂→破坏的全过程三维非线性有限元分析。结合实例计算，所得结果与其它软件分析结果有较好的可比性。
The accurate description of mechanical characters of the mass concrete structure under multi-axial loads is essential to the reasonability of structure design. In this paper, a constitutive model is established which combines the damage mechanics and failure criteria. It improves the existing failure criteria which do not take into account the effect of micro damage in material. The developed program is employed to compute the whole process of arch dam from damage to crack to failure, using 3-D nonlinear FEM analysis. In comparison with that obtained by other softwares, the present computed results show that the proposed model is reasonable.
出处
《工程力学》
EI
CSCD
北大核心
1999年第2期45-51,共7页
Engineering Mechanics
