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损伤细观
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  microscopic damage
     A Microscopic Damage Model Considering the Change of Void Shape and Application in the Void Closing
     一种考虑孔洞形状变化的损伤细观模型及其在孔洞闭合过程中的应用
短句来源
     A microscopic damage model of ellipsoidal body containing ellipsoidal void for nonlinear matrix materials is developed under a particular coordinate. The change of void shape is considered in this model.
     本文在一种特殊的坐标系下,建立了非线性的基体材料,有限大的椭球体中含椭球形孔洞的损伤细观模型,考虑了孔洞形状的影响.
短句来源
  “损伤细观”译为未确定词的双语例句
     Mesomechanics Analysis of Fatigue Damages
     疲劳损伤细观分析
短句来源
     The mode not only reflects damage microstructure traits, but also makes it easy to analyze and research macro parameters.
     该模型既反映了损伤细观结构的特性,又便于宏观参量的分析和研究
短句来源
     4. The physical model describing the initiation, propagation, conjunction and interference process of fatigue cracks was set up with the Monte Carlo method, and the obstructive effect of the micro structure, the interference effect among short cracks and the conjunction of them were all taken into consideration. The model can simulate the whole process of the initiation, propagation, conjunction and interference of fatigue cracks, and visualize the micro physical process of material fatigue damage.
     4、用Monte Carlo方法建立了描述疲劳短裂纹萌生、扩展、合体与干涉过程的物理模型,模型计及了组织结构的障碍作用及裂纹之间的干涉效应及合体现象,可以定量的描述裂纹萌生、扩展、合体与干涉的全过程,实现了材料疲劳损伤细观物理过程的可视化再现。
短句来源
     Based on the constitutive equivalence theory of the multiphase solids and the microscopic model of interficial damage, an analysis for the plasticity of the particulate-composites is completed in this paper.
     基于多相固体本构等效理论及相间损伤细观模型,本文分析了颗粒填充复合材料的塑性行为。
短句来源
     The theoretical analysis on dynamic comminution mechanism of rock layers was made, and the experiment about impact comminution and mesoscopic damage observation was done. The influence of the stain rate on comminution effects of rock layers was studied from the macroscopic and mesoscopic angles. These experimental results are well consistent with theoretical analysis.
     对岩石料层的动态粉碎机理进行了理论分析,并对花岗岩料层进行了冲击粉碎和损伤细观观测实验,从宏观和细观两个角度研究了应变率对岩石料层粉碎效果的影响,实验结果和理论分析具有较好的一致性·研究表明岩石料层在冲击载荷作用下具有显著的应变率效应,粉碎产物的比表面积和活化裂纹密度随应变率的增大而增大;
短句来源
  相似匹配句对
     MESO-MECHANICS AND MESO-DAMAGE MECHANICS
     细观力学和细观损伤力学
短句来源
     Mesomechanics Analysis of Fatigue Damages
     疲劳损伤细观分析
短句来源
     Duodenal injuries
     十二指肠损伤
短句来源
     The Damage Effects Due to Lightning
     雷电的损伤效应
短句来源
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  microscopic damage
This study shows that in PPMS patients there is a significant microscopic damage of the NABT which is independent of the extent of T2-visible abnormalities.
      
Experimental characterization of microscopic damage progress in AS4/PEEK cross-ply laminates under thermal cycling
      
Microscopic damage progress in high temperature CFRP cross-ply laminates under thermal cycling was investigated.
      
This microscopic damage was initiated by vigorous, active probing, along with the copious watery saliva that is secreted during the behavior represented by Ia.
      
A microscopic damage model considering the change of void shape and application in the void closing
      
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Based on the constitutive equivalence theory of the multiphase solids and the microscopic model of interficial damage, an analysis for the plasticity of the particulate-composites is completed in this paper. With the combination of theoretical formulations and the numerical calculation the macroscopic initial yield function, including the effects of the physical property of the constituents, the geometric conditions and the interficial damages, is expressed .A comparison between the numerical results and the...

Based on the constitutive equivalence theory of the multiphase solids and the microscopic model of interficial damage, an analysis for the plasticity of the particulate-composites is completed in this paper. With the combination of theoretical formulations and the numerical calculation the macroscopic initial yield function, including the effects of the physical property of the constituents, the geometric conditions and the interficial damages, is expressed .A comparison between the numerical results and the test values shows the reliability of the theoretical analysis.

基于多相固体本构等效理论及相间损伤细观模型,本文分析了颗粒填充复合材料的塑性行为。结合解析表达式和有限元解,给出了含相间损伤变量的宏观初始屈服函数,函数的构成反映了复合材料塑性行为对组分材料物理性质和几何参数的依赖关系,并包含了相间损伤的劣化影响。计算和试验结果的比较表明,本文的理论分析是可靠的。

A microscopic damage model of ellipsoidal body containing ellipsoidal void for nonlinear matrix materials is developed under a particular coordinate. The change of void shape is considered in this model. The viscous restrained equation obtained from the model is affected by stress void volume fraction f, material strain rate exponent m as well as the void shape. Gurson's equation is modified from the numerical solution. The modified equation is suitable for the case of nonlinear matrix materials and changeable...

A microscopic damage model of ellipsoidal body containing ellipsoidal void for nonlinear matrix materials is developed under a particular coordinate. The change of void shape is considered in this model. The viscous restrained equation obtained from the model is affected by stress void volume fraction f, material strain rate exponent m as well as the void shape. Gurson's equation is modified from the numerical solution. The modified equation is suitable for the case of nonlinear matrix materials and changeable voids. Lastly, the model is used to analyze the closing process of voids.

本文在一种特殊的坐标系下,建立了非线性的基体材料,有限大的椭球体中含椭球形孔洞的损伤细观模型,考虑了孔洞形状的影响.得出的粘性约束方程(或称屈服面方程)除应力∑_(ij),孔隙度f,幂硬化指数m外,还与孔洞的形状有关.通过曲线拟合的方法,对Gurson方程进行了修正,使之适合于非线性的基体材料、变形状孔洞的情形.最后将此模型用于分析非线性材料内部孔洞的闭合过程.

A theoretical analysis on the closing process of internal voids in materials is carried out by using Gurson's model of damage micromechanics and a better agreement between theory and experiment is obtained. However, it is also found that stress or strain tend to have singularities when voids are closed entirely, so a new microscopic damage model is developed and Gurson's equation is modified by introducing the void shape change factor. According to the constitutive relation for materials containing voids established...

A theoretical analysis on the closing process of internal voids in materials is carried out by using Gurson's model of damage micromechanics and a better agreement between theory and experiment is obtained. However, it is also found that stress or strain tend to have singularities when voids are closed entirely, so a new microscopic damage model is developed and Gurson's equation is modified by introducing the void shape change factor. According to the constitutive relation for materials containing voids established in the new model, the condition of the entire closing of voids is given.

采用损伤细观力学中的Gurson模型,从理论上分析了材料内部孔洞的闭合压实过程。理论结果和实验结果基本符合。发现当用该模型分析孔洞完全闭合的条件时,会出现应力或应变的奇异性。因此提出了一种新的、有限体积的椭球体中含椭球形孔洞的损伤细观模型。通过引入孔洞形状改变因子对Gurson方程进行了修正,建立了含孔洞材料的本构关系,推出了材料内部孔洞完全闭合的条件。

 
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