The damage during hydraulic fracturing mainly included clay swelling and grain migration, built up created by mechanical impurities, the damage of fracture conductivity and so on.
水力压裂过程中存在的损害主要包括粘土膨胀与颗粒运移损害、机械杂质引起堵塞损害、支撑裂缝导流能力的损害等。
Interface breakage will be the main fracture mechanism if the interface bonding is weak because of the damage during the composites preparation.
在复合材料中由于制备工艺或后期损伤导致的弱结合界面，界面破坏为主要的复合材料破坏机制。
Regional vascular damage not only slows the healing of fracture, but also increases the chance of bone infection.
对局部血运的损害，最终减慢了骨折愈合的速度，增加了局部感染的机会。
This paper is based on the understand of the concrete material. The mathematic model to study the process of concretes damage and fracture is being put forward.
本论文立足于对混凝土材料特性的认识，提出一个进行混凝土损伤与断裂过程模拟的细观数值模型。
The calculated results coincide with damage zone sizes estimated by means of WEK fracture model.
其结果与WEK断裂模型所估计的损伤区尺寸颇为一致。
The methodology of fracture mechanics based on continuous crack growth was applied to the investigation of the microscopic damage evolution and toughness calculation for fiber composites.
文中以裂纹连续扩展的断裂力学方法，研究单向纤维复合材料的细观损伤演化与韧度计算。
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.
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。
Experimental study shows that the damage rate of fracturing fluid to fracture surface is between 31. 84% and 36. 28%; the damage rate to propping agent layer is between 29. 27% and 30. 04%.
针对太2气层的实验研究表明，压裂液对裂缝壁面的伤害率平均在31.84%- 36.28%之间，压裂液对支撑剂层的伤害率平均在29.27%—30.04%之间。
Fatigue damage estimation of the tendons was made using fracture mechanics approach, establishing the fracture crack growth rate model and limit state equations for failure modes.
疲劳寿命的计算采用断裂力学方法，建立疲劳裂纹扩展模型和失效模式的极限状态方程。
IntroductionThe long tube bone fracture of four limbs is the most common damage in the wound orthopedics.
引言四肢长管状骨骨折是创伤骨科最常见及最多发的损伤。
By use of dynamic strain testing, the ultrasonic wave, bedded composite rock damage and fracture mechanisms and the fragmentation process during blasting have been experimentally studied.
运用超动态应变测试技术、超声波检测仪对层状复合岩体的爆破损伤破坏机理和破坏过程进行了实验研究。
The sliding crack model has been widely applied in the damage and fracture analysis of the rock-like materials.
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。
These studies on complexity of fracture and physical mechanism of damage fracture are very important.
这方面的深入研究有助于认识断裂过程的复杂性及损伤断裂的物理机理。
In combination of studies on AE and mechanical process with that of fracture and damage of material, the concept of AE process is proposed.
将对材料声发射的研究，力学过程的研究，同对材料断裂损伤等破坏过程的研究相结合，提出了声发射过程的概念。
Spiral CT can show fully the damage of nearby tissue caused by the fracture flat shift.
能充分显示骨折片移位对附近组织造成的损伤情况；
The elastic damage theory is valid to describe the damage and fracture behavior of concrete.
研究表明，本文损伤模型可以较好地描述混凝土材料的损伤与破坏行为。
Based on the existing research results and up to the minute theory of rock damage and fracture mechanics, the blasting damage and fracture mechanism of rock and bedded composite rock is studied.
本文基于前人的研究成果，采用岩体损伤、断裂理论的最新研究成果，研究了岩石和层状复合岩体在爆炸应力波和爆生气体作用下的损伤断裂机理。
Based on damage and destroy theory of bedded composite rock, damage principal equation and damage and fracture rules of bedded composite rock have been founded.
以层状复合岩体损伤破坏理论为基础，建立了层状复合岩体损伤本构方程及其破坏断裂准则。
The damage and corrosion of titanium regulating valve is described and the fracture cause of valve core is analyzed.
介绍了钛调节阀的损坏和腐蚀情况，分析了阀芯的断裂原因。
In the fracture study of softening materials, the damage area of crack tip is regarded as a piece of nonlinear crack with cohesive force.
在混凝土类软化材料断裂研究中，裂纹端部损伤区被简化为具有黏聚应力分布的非线性裂纹，该黏聚力对裂纹扩展有阻抗作用。
The results show that considering the effect of fracture toughness increment and retardation of crack of anchorage, better effect of anchorage is reflected in numerical fracture and damage simulation.
计算结果表明：在断裂损伤数值计算中考虑锚杆对裂隙的增韧止裂作用可以更好地反映锚杆的加固效果。
The blasting damage and fracture process of rock is complicated dynamic evolvement process.
岩石爆破损伤断裂过程是一个复杂的动态演化过程。
Based on the theory of damage mechanics, fracture mechanics and elastic mechanics, the formation and expanding of control fissure were researched under the condition of cycle of freezing and thawing.
基于损伤力学、断裂力学、弹性力学等理论，对冻融循环条件下主控结构面的产生和扩展进行了研究。
The mechanism of damage and fracture of rock blasting is composed of blasting mechanism and rock meso-damage theory.
岩石爆破损伤断裂机理是由岩石爆破机理和岩石细观损伤力学理论组成的。
The whole flaw development process of earth body in structure is analyzed according to the theory of damage mechanics and fracture mechanics from the view point of energy.
本文运用伤力学和断裂力学理论，从能量的角度对结构性土体裂纹扩展进行了全过程分析。
The paper introduced the influence of self-anchored suspension bridge on structural safety performance after the damage and fracture of boom for reference.
介绍了自锚式悬索桥在吊杆损伤断裂后对结构安全性能的影响，为以后自锚式悬索桥的结构设计提供参考。
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。
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