通常可用线弹性断裂力学进行钢桥裂纹分析。
The analysis of cracking in steel Bridges can usually be accomplished by using linear elastic fracture mechanics.
接着对有限加筋板的线弹性断裂问题进行了分析。
Secondly the linear elastic fracture problem of the finite stiffened cracked plate is studied.
本文用试验的方法研究了混凝土的线弹性断裂性能。
In this paper the experimental method is used to study the linear elastic fracture properties of concrete.
这表明线弹性断裂韧度准则可应用于混凝土结构的裂缝评定。
It is also found that the linear elastic fracture toughness criteria are applicable to the crack evaluation of concrete structures.
探讨各向同性功能梯度材料裂纹板热弹性断裂问题的数学模型。
The mathematical models of thermal elasticity fracture problem of cracked plate for isotropic functionally graded materials are researched.
作为一个特殊情况，还给出了无穷小热粘弹性断裂力学的基本方程组。
Asa special case, the governing equations for infinitesimal thermoviscoelastic fracture mechanics are given.
本文讨论了线弹性断裂力学的复合型断裂准则。推荐了周向应变因子准则。
In this paper, the criteria of mixed mode brittle fracture are carefully examined. It has been shown that, the circumferential strain factor criterion is rational and safe.
这些基本解可以用于线弹性断裂分析，为求解这类问题提供了新的有效途径。
These fundamental solutions may be applied to linear elastic fracture analysis and consequently they provide a new and effective approach to solve this kind of problem.
对具有中心穿透斜裂纹在弹性断裂和完全塑性断裂两种破坏模式下的断裂强度进行了分析。
The fracture strength of rectangular plate with inclined crack is analyzed considering two failure modes of elastic fracture and fully plastic failure respectively.
采用这里得到的结果，可以很方便地立刻将线弹性断裂力学的某些结果推广到粘弹裂纹体的情形。
Using the results obtained here, we can generalize conveniently and immediately some results of the linear elastic mechanics of fracture to the cases of viscoelastic cracked bodies.
本文从线弹性断裂力学的精确解出发，在考虑材料强化影响的情况下，计算出裂纹前缘的塑性区。
The exact solution of linear elastic fracture mechanics is suggested in this paper and the plastic zone of crack tip is calculated under the condition of strain-hardening of material.
把线弹性断裂力学的理论应用到高强混凝土压剪构件的开裂强度分析中，建立相应的计算力学模型。
Applying theory of linear elasticity fracture mechanics to the analysis of high strength concrete (HSC) compress shear member's cracking stress, a corresponding model is established in this paper.
从裂纹尖端应力场和裂纹扩展两个方面，阐述了功能梯度材料弹性断裂分析的研究方法和主要结论。
The research methods and main conclusions of FGMS fracture analysis are reviewed from the aspects of asymptotic fields near the crack tip and crack expansibility.
因此线弹性断裂力学可以很好地应用于大体积混凝土结构的裂缝稳定性分析和改进水工结构的设计方法。
Therefore, linear elastic fracture mechanics can be applied to stability analyses of cracks in mass concrete structures and to improving design methods of hydraulic structures.
采用虚拟裂缝模型结合线弹性断裂力学的方法，分析了RPC（活性粉末混凝土）及纤维增强RPC的断裂特性；
The fracture properties of RPC(Reactive Powder Concrete) and fibre RPC are analyzed by the Fictitious Crack Model(FCM) and the linear elastic fracture mechanics.
根据线弹性断裂力学理论，通过有限元法计算，分析了路面参数对切缝深度的影响，确定了切缝深度与变温之间的关系。
Modified linear elastic fracture mechanics and finite-element method are applied to determine a sufficient notch or sawcut depth to ensure controlled cracking.
结合最新研究成果，从裂纹尖端应力场和裂纹扩展两个方面，阐述了功能梯度材料弹性断裂分析的研究方法和主要结论。
Based on the latest research fruits, methods and main conclusions of FGMS fracture analysis are reviewed from the aspects of asymptotic fields near the crack-tip and crack expansibility.
纯弹性断裂总是极少的，因之在加载应力作用下，裂纹顶端总是存在着或大或小的塑性区，存在着裂纹与位错的交互作用。
Pure elastic fracture is always rare, so th at under the action of stress, a plastic zone(large or small), and interactions between crack and dislocations always exist at the crack tip.
对含中心裂纹的无限大板在裂纹表面受均匀分布压力作用的情况，导出了几何非线性弹性断裂力学的能量释放率的一个精确表达式。
An exact expression of energy release rate for geometrical nonlinear elastic fracture mechanics is obtained for an infinite plate with central crack under uniform stress normal to crack surfaces.
应用线弹性断裂力学的弹性能释放率及裂纹扩展阻力等基本概念和理论，建立起确定纤维增强高分子聚合物复合材料断裂韧性的能量方法。
An energy method for determining fracture toughness of fibrous composite laminates was based on the theory of elastic energy release rate and crack-growth resistance in this paper.
这些殖民地的植物也需要坚硬有弹性的茎高于土壤，茎可以弯曲很多，但不会断裂，因为水不断闯入他们。
The plants in these colonies also need tough resilient stems above the soil, stems that can bent a lot but not break as water constantly crashes into them.
弹性范围，塑料范围（当材料以不变的应力流动时），应变硬化范围和发生颈缩现象以其断裂终止的范围。
The elastic range, the plastic range (during which the material flows at a constant stress), the strain-hardening range, and the range during which necking occurs, terminating in fracture.
优点：耐磨性佳、防滑、有弹性、不易断裂、柔软度较好、伸延性好、收缩稳定、硬度佳、弯曲性好。
Advantages: good abrasion resistance, anti slip, elasticity, not easy to break, softness, good stability, extended contraction, good hardness, good bending.
材料的强度是受气孔率、弹性模量、断裂能和临界缺陷尺寸控制的。
The strength of materials are controlled by porosity, modulus of elasticity, fracture energy and critical flaw sizes.
弹性垫圈在生产过程中断裂。
通过湿热老化试验，研究了APMOC纤维吸湿性能、拉伸强度、断裂延长率以及弹性模量随老化时间的变化。
The changes of moisture absorption properties, tensile strength, fracture elongation and elastic modulus of APMOC fiber with aging time were investigated through the hygrothermal aging test.
据弹性力学理论、断裂力学知识，给出了该问题的力学模型：一类偏微分方程边值问题。
According to elastic mechanics theories and fracture mechanics knowledge, the mechanics models for boundary value problem to a class of partial differential equations are presented.
随着最大载荷保持时间的增加，塑木复合材料进入延迟弹性变形阶段越晚，弯曲挠度增加越快，断裂寿命降低。
The delayed elastic deformation stage came later, the bend deflection increased more quickly, and breaking life shortened with the increase of the prolongation of the maximum load hold time.
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。
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。
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.
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