断裂主要是通过铜相的撕裂，显示出塑性断裂的特微。
The fracture was mainly caused by the tearing of copper phase, showing a feature of ductile fracture.
进一步说明失效评定图方法也是缺口弹塑性断裂评定的极好方法。
Furthermore, the failure assessment curve method is a feasible method for notch elastic-plastic fracture assessment.
该复合材料韧性降低，使其断裂形态从塑性断裂转变为脆性断裂。
The abrasion mass decreases at first, then increases. The fracture mechanism of the MMC transforms from ductile fracture into brittle fracture.
并用弹塑性断裂理论的J积分，计算和分析了非线性时砌石体的断裂韧度。
Simultaneously, the fracture toughness was analysed, and calculated by means of J-integrals adopting the theory of elastoplastic fracture.
对裂纹前端局部加强的裂纹板的弹塑性断裂问题及加强复板的止裂性能进行了研究。
The loading carrying capacity of the cracked plates locally reinforced using stiffeners are studied and the efficiency of the stiffeners for retarding the crack propagation are evaluated.
建立J - A_2双参数断裂准则，对不同裂纹深度的管道进行弹塑性断裂预测。
According to the fracture rule with two parameters J and A_2, the fracture press values of some cracked inner-pressed-pipelines were forecasted.
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.
在3c级断裂评估中，J积分是一个非常重要的参量，也是研究弹塑性断裂力学的重要内容之一。
In the fracture assessment of 3c, J-integer is a very important parameter, which is also an important contents in the elastic-plastic fracture mechanics.
在对X60管钢弹塑性断裂分析中，采用J - A2双参数方法来预测带表面裂纹管道的破坏压力。
In the elastoplastic fracture analysis for pipelines steel X60, J-A2 two parameter approach was adopted to predict the failure pressures of pipelines with surface cracks.
文章在有限变形分析基础上建立了对复杂结构进行弹塑性断裂评定的工程方法，用以修正COD设计曲线。
In this paper, an engineering assessment method of elastic-plastic fracture based on finite deformation analysis of complex structures. or a modified COD -design equation, presented forward is put.
在弹塑性断裂研究中广泛地采用着J积分断裂判据，这种判据的基础是HRR理论。近些年来，一些研究者基于数值分析和试验研究对HRR理论的适用性进行了讨论。
The J-integral fracture criterion based on HRR theory has been widely used in the studies of elastic-plastic fracture of materials.
然而，有时我们也能利用塑性变形。汽车上压皱的区域在它们断裂前通过经历塑性变形来吸收能量。
However, sometimes we can take advantage of plastic deformation. The crumple zones in a car absorb energy by undergoing plastic deformation before they break.
结果表明：多重固溶时效热处理可以显著提高合金的塑性和断裂韧度，而对强度的影响不大。
The results showed that multiple solution and aging treatment had a significant effect on increasing plastic property and fracture toughness, although had little effect on strength.
冷轧扭钢筋在检测时，试样易在夹具内断裂，其塑性难以精确测定。
When testing, it is more likely for cold-rolled and twisted steel bar to be broken in fixture and so that its plasticity can hardly be precisely measured.
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.
介绍了开发研制的黄铜薄壁小直径天线套管，并对拉伸断裂的塑性变形理论进行了分析探讨。
The thin thickness small diameter brass antenna casing is introduced and plastic deformation theory in tension fracture process is analyzed.
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.
分析其失效原因为铅合金在外力作用下，产生塑性变形引起的低周疲劳，造成断裂。
Through analysis, the failure reason was confirmed as that the low cycle fatigue caused by plastic deformation occurred in the lead alloy, thus the fracture occurred.
并对超塑性变形过程中的孔洞行为与断裂机理进行了研究。
The cavitation behavior and the fracture mechanism under superplastic deformation are analyzed too.
试件拉伸过程中塑性变形阶段内磁信号无较大数值变化，断裂后信号突变。
The magnetic signals were hardly varied during elastic and plastic deformation periods but changed after fracture rapidly.
结果显示由于引线键合工艺、注塑工艺以及回流焊中封装体各部分不同的热膨胀系数引起的热应力和塑性变形是产生引脚跟断裂的主要因素。
The result shows that the plastic strain at the heel region induced by wire bonding process, molding process and the thermal stress and strain in solder reflow are the main causes of heel crack.
模具失效的基本形式有断裂与疲劳、塑性变形、磨损、咬合、冷热疲劳等。
Its basic forms are rapture and fatigue, plastic deforming, wearing, holding-on, cold and hot fatigue, etc.
塑性动态断裂韧性CTOD，及其在不同裂纹扩展速度下变化规律的测试。
The dynamic plastic fracture toughness CTOD and its variation with different. crack propagation speeds.
但是中厚壁钢管DWTT试验经常产生解理断裂部分塑性变形大的逆向断口，使试样无效。
But for medium thickness pipe DWTT, it usually converse fraction of figure transforming much in break part, and make specimen failure.
在最佳超塑性条件下，断口中形成了大而深的空洞，晶界滑动和晶间断裂特征明显。
The deep and large cavities are formed on fracture surface and grain boundary sliding and intergranular fracture characteristic is obvious on the optimal superplastic deformation condition.
通过对结构塑性动力学响应和叶片变形过程的分析，指出了叶片断裂时的不同转速对撞击过程及结果的影响。
Effects of rotation speed on the impact process and results are pointed out by the analysis of structural plastic dynamic response and blade deformation.
在上述实验结果的基础上，采用塑性滑移线场理论，提出了X60过热区在不同服役温度下的断裂机理。
On the basis of above experiment, fracture mechanism of X60 over-heated HAZ was given using the theory of slip line field.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
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