The damage propagation of rock under the freezing and thawing condition is a new direction of rock damage mechanics.
岩石冻融过程的细观损伤研究是近年来冻融损伤研究的一个新方向。
CT identification technique is applied to study the damage propagation. The in-time CT scanning is used to study the process of damage propagation of rock.
将CT识别技术用于岩石损伤扩展研究，对岩石损伤扩展过程进行即时CT扫描。
The propagation of violent earthquake wave and sand liquefaction are two reasons to make underground pipeline damage.
强烈地震波的传播及砂土液化是造成地下管线发生破坏的两类原因。
Stray light generated in optical system forms a lot of ghost images, which not only seriously influence the beam quality and propagation properties, but also damage optical components.
光学系统的杂散光极易在系统内形成多个鬼像，这不仅严重影响光束质量和传输特性，并可能对系统光学元件造成永久性损伤。
Tranagranular cracks result from deformation damage of grain, and its propagation mechanism is shear rupture along slip plane.
穿晶裂纹源于晶内形变损伤区，其扩展机制为沿滑移面的剪切断裂。
Inversion of wave propagation in inhomogeneous damaged media is studied, and damage degree is obtained according to received wave response.
介绍了波在非均匀损伤介质中的传播的反问题，根据波的响应来反演介质的损伤。
When the component is installed on an airplane, this internal damage can lead to crack initiation and propagation, resulting in component fracture.
如果把这样的部件安装在飞机上，其内部损伤会导致裂纹并扩展，最终造成部件断裂。
Relaying and spatial filtering on beam propagation are required in order to overcome self-focusing damage.
为了克服自聚焦造成的破坏要求在光束传播中采用中继成像和空间滤波。
It is revealed that the viscosity effects on the relationship of the amplitudes and wave propagation time with the damage are necessary to consider in the damaged medium.
比较是否考虑粘性时的波幅和波传播时间与损伤的关系，表明粘性是损伤混凝土介质中波传播所必须要考虑的问题。
The formula of the fatigue crack propagation rate was directly derived from the fatigue damage criterion.
通过疲劳损伤准则，导出疲劳裂纹稳定扩展速率的计算公式。
It is the initial damage, damage evolution and propagation fracture that result in various failure of jointed rock mass.
正是由于这些节理裂隙的初始损伤、损伤演化、扩展断裂等缺陷导致岩体产生了各种形式的破坏。
From both theoretical and experimental research, the damage effect and propagation law of blast wave for small thermo-baric warhead explosives in air are discussed in this paper.
本文从理论和实验两方面对小型温压弹的冲击波的传播规律以及杀伤效应进行了研究。
In addition, the crack propagation and fatigue damage of CSP under wind load in the case of the material which have initial crack have been analyzed using fracture mechanics method.
此外，还运用断裂力学方法分析了材料有初始裂纹的管道在风荷载作用下的裂纹扩展及疲劳损伤。
The theory of wave propagation in concrete media with local damage is the basis of the study in this paper.
局部损伤混凝土介质中的波的传播理论是本文研究的基础。
Based on the focalization ability of time reversal theory to the wave origin, the wave propagation was rebuilt by an image method which displays the damage as the focusing point.
利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。
Based on the focalization ability to the wave origin of time reversal theory, the wave propagation image is rebuilt to display the damage.
利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。
In addition to its propagation mission, many viruses contain code whose purpose is to cause damage.
除了传播病毒外，许多病毒包含可以引起破坏的代码。
Pre-damage would accelerate crack initiation and propagation, and increase the degree of damage.
预损伤加快了裂纹的产生、扩展，使得损伤程度进一步加重；
The initially existing damage has apparently affected on wave stress propagation and stress distribution as long as its quantity exceeds a threshold value.
当初始损伤超过某临界值后会显著地影响应力波的波动范围和围岩应力分布；
Encourage new tissue growth to repair damage incurred during fragmentation and propagation.
在节枝及繁殖期间﹐激励新的组织生长和修复。
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.
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。
In the analysis, damage accumulation method is used to track the crack propagation, which can improve the reliability.
分析过程中，采用了损伤累积的方法，对每个载荷步的裂纹扩展进行累积，提高了结果的可信度。
It is shown that the proposed ductile fracture model can accurately and effectively predict the whole damage process of ductile metals including crack initiation, propagation and final fracture.
结果表明，该模型可很好地预测延性金属材料自裂纹萌生、扩展直至完全断裂的全过程。
It is shown that the proposed ductile fracture model can accurately and effectively predict the whole damage process of ductile metals including crack initiation, propagation and final fracture.
结果表明，该模型可很好地预测延性金属材料自裂纹萌生、扩展直至完全断裂的全过程。
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