Wrinkle and tension crack may occur in the stamping process of bucket, a curved surface part.
在板材成形中，起皱和拉裂是主要缺陷，而压边力是控制板材成形的重要工艺参数。
In addition, when there are tension crack and water in the slope, the critical inclination has relations with the position of crack and the level of water.
此外，当边坡中有张裂缝和水时，滑面的临界倾角还与张裂缝的深度和水位高度有关。
Based on the hierarchical block element method presented earlier, a new concept of subordinate cover and a method to simulate the tension crack in rocky block are proposed.
基于阶谱块体单元法，提出了二次覆盖的概念和一种分析岩石块体受拉开裂破坏的方法。
Pointing out absurdities or making jokes is a mature and healthy way to ease tension, so there's no need to feel bad the next time you feel the urge to crack a joke at an inappropriate time.
指出荒唐或开玩笑是一个减轻紧张的成熟、健康的方法，所以在不适当时候有要说笑话的冲动时，没有必要感觉不好。
A method is proposed to simulate the fatigue crack growth by finite element technique for corner cracks under cyclic tension loading.
给出了一种利用有限元技术模拟周期性张力载荷作用下孔边角裂纹扩展过程的方法。
When the tension in the top (created by shrinkage) has built up, it eventually releases - and it releases in the form of a crack.
由于收缩造成的面板张力不断累积，导致裂纹。
In this paper, boundary collocation method is used to calculate stress intensity factors of an eccentric crack in an elliptical disc subjected to a uniform tension stress.
本文用边界配置方法计算了不同情形下含偏心裂纹椭圆盘受均布载荷时的应力强度因子。
The conventional method for determining the first crack point of concrete in direct tension is greatly dependent on the judgment of idvidual.
目前采用的确定混凝土拉伸断裂初裂点的方法，受人为因素影响大。
The concrete was considered as crack progressing once the maximal principle of stress in the concrete reached the ultimate stress of concrete according to the theory of maximal tension stress.
根据最大拉应力理论，认为一旦混凝土的最大主应力大于混凝土材料的抗拉强度，就被视为混凝土开裂的微裂区域。
Non-tension method and smeared crack model is applied to the analysis of concrete cracking.
引入无拉力法和弥散裂缝分析混凝土开裂。
The crack fractographs of X60 pipeline steel after 10% per-tension deformation under cyclic loading are investigated by the SEM.
用扫描电镜（SEM）分析了X60管线钢在未变形和10%的预拉伸变形后循环载荷下的裂纹断口形貌。
Stress concentration occurs in surrounding rocks, while the maximum tension stress is less than the tensile strength of rock mass, so tensile crack does not take place.
动荷载作用下地下硐室群围岩出现较大的应力集中，但最大拉应力小于岩体的抗拉强度，地下硐室群围岩不会出现拉裂破坏。
Laying certain thickness heated board can reduce the concrete surface tension stress effectively to prevent crack.
在混凝土表面铺设一定厚度的保温板可以有效的降低混凝土表面的拉应力，防止裂缝的产生。
Fracture test of the BT20 indicates that brittle unstable fracture occurs after ductile crack initiation and slow propagation for all the compact tension (ct) specimens.
BT 20钛合金断裂试验表明，CT试样均在裂纹延性启裂并缓慢扩展后，发生脆性失稳断裂。
The flow state within the corrosion fatigue crack and the influence of other parameters on the flow velocity for compact tension specimen were discussed according to the model.
据此，以紧凑拉伸试样为例，讨论了影响速度的各参数及裂纹内的流态。
A crack problem in the case of a circular cylinder having an infinite row of circumferential cracks under tension are analyzed in this study, by the integral equation method.
本文采用奇异积分方程方法研究了含周期型环边裂纹长圆柱的轴对称拉伸问题。
Fixed and rotating smeared-crack models based on a deformable distinct element method were developed to analyze the fracture of quasi-brittle materials such as concrete and rock under tension.
为进行连续介质到非连续介质转化的数值模拟，实现结构破坏过程的仿真分析，将固定和旋转的弥散裂缝模型与变形体离散元方法结合应用于混凝土、岩石等准脆性材料的受拉开裂过程分析。
The maximal tension stresses in surface and base between induced crack have been obtained by parametric analysis.
通过结构参数分析掌握了预切缝间面层、基层中最大拉应力的分布规律。
A 2-d finite element model of tire-rubber was established to simulate the crack growth of the sample under simple tension, by using the strain energy density parameter.
建立了二维轮胎橡胶材料的有限元模型，用应变能密度这个参数模拟了试样承受单向拉伸时裂纹的扩展方向。
Crack top's tension stress and stress intensity factor caused by thermal stress were computed, structural parameters' sensitivity analysis were made as well.
对路面突然降温时的温度场进行了数值模拟，计算了温度应力作用下反射裂缝尖端的拉应力、应力强度因子，并对其进行了参数分析。
Crack top's tension stress and stress intensity factor caused by thermal stress were computed, structural parameters' sensitivity analysis were made as well.
对路面突然降温时的温度场进行了数值模拟，计算了温度应力作用下反射裂缝尖端的拉应力、应力强度因子，并对其进行了参数分析。
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