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- damage evolution modal 损伤演化模型
- AE accumulative relative energy is related to the damage evolution of C/SiC composites closely. 声发射累积相对能量和C/SiC复合材料的损伤演化有较好的相关性。
- The creep damage evolution curve from SPCT with three stages is similar tothat of creep strain, being consist of decelerating, constant rate and accelerating stages. 同时证明了作者所建立的有限元模型的正确性。 (3)试样损伤曲线变化规律与蠕变应变的变化规律相类似,损伤曲线具有减速、恒速和加速的三阶段。
- The matrix damage evolution behavior and the effect of matrix micro-cracks on the dynamic characteristics of composite stiffened delaminated plates are studied. 由于该准则考虑了载荷作用周期数的影响,从而能够更合理地分析周期性动载荷作用下基体微裂纹损伤演化规律。
- The meso-scope damage dynamics and damage evolution had been applied to probe the evolution process induced catastrophe in the earthquake activity.It is a new method. 摘要从细观损伤力学及损伤演化的角度探索地震活动中的演化诱致发震是一种全新的方法。
- Acoustic emission (AE) characteristics of a sandstone sample in fatigue failure process were analyzed by AE testing and its fatigue damage evolution rule was studied. 摘要通过砂岩试件疲劳破坏的声发射实验，分析了砂岩疲劳破坏过程的声发射特性，研究了岩石的疲劳损伤演化规律。
- According to basic damage principle, the shear damage variable of rock and the pull damage variable of grout body are defined, and the damage evolution equation is suggested. 摘要根据损伤理论的基本原理，分别定义了岩体剪切损伤变量和受拉浆体材料的损伤变量，确定了各自相应的损伤演化方程；
- The failure mode of frozen silt with layered structures is mainly controlled by segregating ice.And the damage evolution is remarkably different with different loading directions. 层状构造冻土的破坏主要受控于分凝冰，不同加载方向下层状构造冻土的损伤演化过程存在显著差异。
- In the light of the dynamical analysis of microcrack coalescence, this paperpresents a statistical fractal modeI to describe the damage evolution of spailation. 摘要 通过对微裂纹连接的动力学分析，提出了描述层裂损伤演化的统计分形模型。
- Finally, the damage evolution rule of concrete due to triaxial compressive loading history is summarized, and the problems that should be solved in the future are presented. 然后，对混凝土经历各种三轴受压荷载历史后损伤的演化规律进行了深入研究，幷提出进一步研究应重点解决的问题。
- The damage evolution process is similar to percolation, and the unusual behavior of some properties at fracture or fragmentation is often related to certain scaling relations. 损伤演化过程与逾渗现象极为相似,临近断裂和破碎时,某些物理量所表现出来的异常行为往往满足一定的标度关系。
- The damage zone development and damage evolution ahead of a crack tip in an dutile metal specimen are studied from the viewpoint of continuum damage mechanics. 从连续介质损伤力学的基本理论出发,研究了金属试件中裂纹尖端损伤区的发展和区内损伤的演变。
- Based on this, the relationship between strain and FDEE is studied and a unified equation for low-cycle fatigue fractal damage evolution depended on strain is established, a life prediction method for TC11 welded joint is obtained. 分析建立了分形初始损伤以及分形临界损伤与载荷间的函数关系,将其引入分形损伤演化方程后,得到了仅与载荷相关的焊接接头低周疲劳分形损伤演化统一方程,从而建立了TC11钛合金焊接接头的寿命预测模型,通过该模型可得给定载荷的预测寿命分布。
- In order to choose rock cover of Xiamen subsea tunnel now,3D elastoplastic constitutive relation and damage evolution equation for 4 profiles has been done along the longitudinal of the tunnel. 在厦门海底隧道轴线的地质剖面图上,选取了4个典型的剖面,应用多裂隙岩体三维弹塑性本构关系和损伤演化方程进行数值分析研究,得到了应力分布、洞周位移、塑性区、损伤区等结果。
- The damage of welded specimens is measured in the strain-controlled LCF experiment of titanium alloy (TC4) which is often used in aero-engine and the damage evolution model is verified. 用控制应变的疲劳试验，对航空发动机中常用的TC4钛合金焊接试件进行了疲劳损伤的测量，验证了损伤演变模型。
- The relations between Ultrasonic parameters and damage evolution are obtained by test, which include cube and prism specimens with different w/c ratios and notched concrete beams with. 通过试验，得到了不同水灰比的立方体和棱柱体试块以及不同开口缝深的缺口梁的损伤演变与声学参数(声速和波幅)的关系，验证了混凝土损伤破坏机理。
- The distribution of microcrack lengths in damage evolutional process of materials is a fractaldistribution. 材料损伤演化过程中的微裂纹分布是分形分布。
- The flood did a lot of damage to the crops. 洪水毁坏了大量农作物。
- The storm did a great deal of material damage. 暴风雨造成了大量物质损失。
- The space program is the evolution of years of research. 太空计划是多年研究的发展结果。
