系统的脆性分析的关键是要建立脆性模型。
The key of analysis of the brittleness of system is to build the brittle model.
对脆性材料的切割机制进行研究，建立切割冲蚀模型，分析受冲击区的应力。
The mechanism of cutting brittle materials was studied, the impact model was established and the stress of impacting area was analyzed.
基于准静态爆生气体膨胀和岩石断裂力学理论，建立了不耦合装药刻槽爆破时的脆性断裂爆破模型。
Based on the theory of quasi-static explosion gas dilation and the principle of rock fracture mechanics, Brittle rock fracture model is developed for notch blast with non-coupled charge explosion.
利用弥散裂缝理论，提出了压实黏土拉伸状态下的脆性断裂模型。
Based on the smeared cracking theory, a brittle fracture model for tensile state of compacted cohesive soil is proposed.
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.
基于钢筋混凝土的破坏分析，结合混凝土类准脆性材料的断裂特性，本文提出了强化筋桥联基体裂纹力学分析模型，在该虚拟裂纹端部存在粘聚力分布，而强化筋在桥联裂纹处具有与基体脱离的部分段。
Based on the failure analysis of reinforced concrete and the fracture behavior of concrete as a type of quasi-brittle materials, a model of matrix crack with bridging bar is proposed in this paper.
提出了考虑拉压响应的弹脆性损伤演变的理论模型与本构方程。
The theoretical model and the constitutive equation with the response of both tension and compression for elastic brittle damage evolution taken into account are derived.
为进行连续介质到非连续介质转化的数值模拟，实现结构破坏过程的仿真分析，将固定和旋转的弥散裂缝模型与变形体离散元方法结合应用于混凝土、岩石等准脆性材料的受拉开裂过程分析。
Fixed and rotating smeared-crack models based on a deformable distinct element method were developed to analyze the fracture of quasi-brittle materials such as concrete and rock under tension.
基于扩展有限元法的粘聚裂纹模型为准脆性材料的开裂过程模拟提供了一种有效途径。
The present cohesive crack model based on the XFEM provides a useful way to simulate cracking in quasi-brittle materials.
通过有限元模型的参数调整进行了数值模拟，定量分析了高强混凝土脆性对节点受剪承载能力的影响。
Based on adjustment of model parameters in finite element analysis, the influence of brittle property of high strength concrete on the shear capacity was analyzed.
其次，为了形象化说明复杂系统脆性的概念，提出了多米诺骨牌模型、金字塔与倒金字塔模型、元胞自动机模型等几种基本模型。
Secondly, domino model, pyramid model, reverse pyramid model, and cellular automaton model have been presented in order to explain the concepts of brittleness clearly.
提出了含三相正交分布等尺寸微裂纹的准脆性材料稳定扩展的细观损伤演化模型。
The stable growth of cracks in a brittle material with three mutually perpendicular families of microcracks under proportional tensile loads was studied.
在模型实验应力分析中采用脆性涂料法确定模型机架最大主应力部位和主应力方向，采用电阻应变测量法确定模型机架的主应力水平。
Stress coating is adopted in order to determine the points and directions of the most main stress of the frame, resistance strain gauge method used for determining main stress value of the frame.
为研究初始裂缝尖端起裂的条件和所需注水压力，依据断裂力学的复合型裂纹的脆性断裂理论，建立了裂缝尖端力学模型，给出了计算方法。
For researching crack initiation condition and water injection pressure needed, this paper built up a mechanics model of crack tip based on crisp fracture theory of compound crack.
结合粘结裂纹模型，研究了结构从延性到脆性失稳的特性以及引起脆性破坏的影响因素。
Combining with the cohesive crack model, the behavior of structure in the range from ductile to brittle instability and the factors influencing the brittle failure are studied.
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.
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.
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
In this paper, the brittle fracture probability of weldments and the fracture toughness of heat affected zone (HAZ) were investigated according to the principle of the weakest link theory.
通过将卵形头弹的计算结果与试验数据相比较，表明梁–颗粒模型可有效应用于计算和模拟脆性材料动态破坏问题。
The comparison of the simulated results with the experimental data shows that the BPM2D is applicable to the simulation of dynamic failure problems for brittle materials.
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
The fatigue crack growth (FCG) behavior of the weld heat-affected zone of 14MnNbq bridge steel was systematically investigated in this paper.
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
The fatigue crack growth (FCG) behavior of the weld heat-affected zone of 14MnNbq bridge steel was systematically investigated in this paper.
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