运用连续损伤力学和细观损伤力学理论,建立了适用于水射流破岩全过程分析的岩石损伤模型以及宏细观损伤的耦合模式。
The rock damage model and the damage-coupling model suited to analyze the whole process of water jet breaking rock were established with continuum damage mechanics and micro damage mechanics.
在混合物理论基础上,建立了饱和、非饱和岩石损伤软化统计本构模型。
Then the statistical damage constitutive model is developed for saturated and unsaturated rock based on the mixture theory.
本工作考虑这些微缺陷的影响建立损伤本构理论,将其应用于根据岩石所含孔隙度不同而提出的不同模型。
Taking the influence of microdefects into account, a new constitutive relationship of damage is developed, and applied to different models of rock with different porosities.
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.
引入了自洽法有效弹性模量,建立了爆破作用的岩石损伤的全过程模型。
And with the introduction of the Modulus of Elasticity from Budiansky method, the general damage model of rock blasting is established in the paper.
采用细观弹性损伤模型和有限元计算方法实现岩石三维破裂过程的数值模拟。
A linear elastic damage model based on finite element method at mesoscopic level was applied to investigate the three-dimensional failure process of rock subjected to various stress loadings.
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.
针对岩石混凝土类材料,提出了损伤局部化分叉模型。
The paper presents a damage localization bifurcation model for rock concrete like materials.
定义了用等效剪切刚度表示的损伤变量,建立了一个分三阶段表述的岩石动态剪切损伤本构模型。
By introducing a damage variable expressed by the equivalent shear stiffness, a dynamic shearing damage constitutive model of rock is established including three phases.
结合连续强度理论和统计理论,从岩石内部缺陷分布的随机性出发,建立了岩石统计损伤本构模型。
Based on random distribution of interior defect in rock, a statistical damage constitutive model for rock is developed by using the continuous strength theory and statistical theory.
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.
参照经典塑性力学的屈服面理论,引入了温度作用下应力空间中脆性岩石的损伤面模型,定性地讨论了荷载和温度影响下损伤面时的演化规律。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
在考虑岩石冲击损伤过程的声波衰减规律及其与能量耗散率关系的基础上,建立新的岩石爆破损伤模型。
Considering the relationship of the attenuation of wave and damage energy dissipation, a new rock damage model is developed for rock blasting.
探索岩石动态损伤参量及其演化表征方式以构造岩石爆破损伤模型。
The new parameters for describing damage and its evolution in rock are explored to construct damage model of rock fragmentation by blasting.
采用细观力学方法提出一个岩石各向异性损伤和渗流耦合的细观模型。
A coupled model for anisotropic damage and permeability variation by using a micromechanical approach is presented.
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.
经实测数据与所建模型对比验证,延性破坏、脆性破坏模式本构模型精度较高,可为岩石损伤评估提供依据。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
基于均匀化方法给出低孔隙率脆性岩石在热—力耦合荷载作用条件下的各向异性损伤模型和有效热传导特性模型。
An anisotropic damage model and an effective thermal conductivity model were presented based on homogenization techniques for low-porosity brittle rocks subjected to mechanical and thermal loadings.
其研究结果为建立岩石损伤流变本构模型奠定基础。
This study could provide the foundation for further establishment of non-stationary rheological constitutive model.
考虑化学反应对温度的影响,通过温度作用下的弹性模量,提出了岩石温度损伤模型。
Thermal-mechanical-chemical coupling damage model of brittle rock is established based on damage mechanics.
考虑化学反应对温度的影响,通过温度作用下的弹性模量,提出了岩石温度损伤模型。
Thermal-mechanical-chemical coupling damage model of brittle rock is established based on damage mechanics.
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