运用损伤力学以及断裂力学理论，定义了岩体损伤张量、有效应力张量、损伤应变等，建立了损伤演化方程，从而建立了多裂隙岩体的损伤断裂模型。
Using the theory of damage mechanics and fracture mechanics, the damage tensor, effective stress tensor and damage strain, etc. of rock mass are defined, propagation equation of damage is developed.
本论文立足于对混凝土材料特性的认识，提出一个进行混凝土损伤与断裂过程模拟的细观数值模型。
This paper is based on the understand of the concrete material. The mathematic model to study the process of concretes damage and fracture is being put forward.
滑动裂纹模型被广泛应用于岩石类材料压剪断裂分析及损伤分析。
The sliding crack model has been widely applied in the damage and fracture analysis of the rock-like materials.
其结果与WEK断裂模型所估计的损伤区尺寸颇为一致。
The calculated results coincide with damage zone sizes estimated by means of WEK fracture model.
在分析现有岩石爆破损伤模型和岩石爆破损伤断裂理论的基础上，建立了新的岩石爆破损伤模型。
Based on the existing damage model of rock blasting and the theory of rock damage and fracture, a new damage model for rock blasting has been founded.
提出了一种描述岩石、混凝土类材料断裂损伤过程区的细观力学模型，用于分析材料的非线性断裂的微观机理。
The cracking mechanism based on non linear fracture model for rock concrete materials is proposed and micro mechanical model for fracture process zone (FPZ) established.
本文采用损伤力学的研究方法，建立了裂隙岩体的损伤流变断裂力学模型。
In this paper, a rheologic damage fracture model for jointed rocks is built and is utilized to analyze stability of seam floor rocks in mining.
本文研究了混凝土、岩石类损伤材料的宏观断裂模型。
A fracture model for damaged materials like concrete and rocks is presented in the paper.
建立了这两个区域的损伤断裂准则和裂纹尖端的损伤局部化模型，可以更好地反映爆生气体作用下裂纹扩展的实际过程。
The damage and fracture criterions and the damage localization models at the crack tip are individually established, which can better realize the true process...
利用有限元方法模拟时，韧性断裂准则既可以应用到完全耦合的弹塑性损伤模型的增量方法中，也可以应用到一步有限元逆算法中。
When adopting FEA to model, DFC could not only apply into incremental approach with a fully coupled elastic and plastic damage model, but to one step inverse approach.
本文通过对梯度材料内部缺陷所决定的材料破坏机理分析，建立了梯度材料损伤和断裂的统计模型。
In this paper, the continuum mechanics theory for the FGM is studied and the failure mechanism of FGM with interior defect is analyzed.
本文通过对梯度材料内部缺陷所决定的材料破坏机理分析，建立了梯度材料损伤和断裂的统计模型。
In this paper, the continuum mechanics theory for the FGM is studied and the failure mechanism of FGM with interior defect is analyzed.
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