片语

fatigue crack closure疲劳裂纹闭合

crack closure integral裂纹闭合积分

Virtual Crack Closure Technique虚拟裂纹闭合技术

problem of crack closure裂缝闭合问题

effect of crack closure闭合效应

Prevent Crack Closure防止裂纹闭合

short crack closure短裂纹闭合

crack closure model裂纹闭合模型

英汉例句

• compressive residual stress increases the crack closure effect at the notch and may lead to a non-pr…

  残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。

• the short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.

  粗晶组织比细晶组织的裂纹偏折更大，粗糙度诱发闭合效应更强，因而裂纹扩展较幔。

• crack opening and crack closure can still exist under cyclic compressive loading, whose mechanism differs from that under cyclic thrust loading.

  循环压载下仍存在着裂纹张开和裂纹闭合，其机理与拉伸循环下不同。

• in this model, the plastic zone induced by the overload is affected by the three-dimensional constraints, and it leads to significant influence on the crack closure and growth rate.

  在此模型中，裂尖的三维约束状态显着影响超载塑性区，从而显着影响裂纹的闭合和扩展速率。

• the overload effects were controlled by various factors such as crack blunting, residual compressive stress ahead of the crack tip and crack closure induced by wake zone plasticity.

  过载效应是裂尖钝化、裂尖附近残余压应力和裂尖尾部塑性诱导闭合等共同作用的结果。

• the retardation effect of overload is taken into account using crack closure model and the crack opening stress level is assumed to vary linearly in the yield zone produced by the overload.

  采用裂纹闭合模型考虑超载的迟滞效应，认为裂纹张开应力在超载引起的塑性区内按线性规律衰减。

• the simulating results have indicated that:the crack closure effect is obviously influenced by the fatigue crack length.

  在建立裂纹扩展模型的时候，要考虑到裂纹长度对裂纹闭合效应的影响。

• based on this fact a modifying model for the size effect of short crack closure was proposed and was supporte…

  与实验结果相比，本文模型对短裂纹的闭合预测甚好。

• the fatigue crack closure and fatigue crack growth rate in the high strain region of sct specimen are studied.

  本文研究了sct试样高应变区的疲劳裂纹闭合效应和疲劳裂纹扩展速率。

• it turns out that crack closure is the main reason for retardation, and crack tip blunting, crack deflection and strain-induced martensite would reinforce it.

  室温蠕变对裂纹扩展产生延滞的原因主要是裂纹闭合，同时裂尖钝化、裂纹偏折及形变诱发马氏体的形成也会起到一定的作用。

• the strain energy release rate of the crack propagation was calculated by using virtual crack closure technique, and fatigue life was forecasted.

  采用虚拟裂纹闭合技术计算裂纹扩展的应变能释放率，并对裂纹扩展寿命进行计算。

• the crack closure is dynamically measured by means of interferometric strain-displacement gauge(isdg).

  用激光干涉应变-位移测量仪（isdg）进行了裂纹闭合点的高精度动态测量。

• the high fatigue properties were found to be related with higher crack closure stress, rough fracture surface and tortuousity of crack path.

  较高的疲劳性能与裂纹尖端闭合应力、断口表面粗糙度以及裂纹扩展路径弯折程度有关。

• crack closure of base metal is caused by the residual plastic plastic deformation remaining in the wake of an advancing crack tip and is not as significant as in welded specimen.

  而在管线钢基材中裂纹闭合现象较小，闭合原因是裂纹尖端尾部的残余塑性变形。

• base on this theory, the geometric model for analysis of open crack closure is established.

  在此基础上，建立裂纹面闭合分析的几何模型。

• the theoretical analysis indicated that the crack closure effect was mainly responsible for the change of crack growth retardation in corrosion fatigue.

  分析表明，塑性诱发裂纹闭合在腐蚀条件下的变化是造成超载后裂纹扩展规律变化的主要原因之一。

• the typical quantitative models on the crack closure are introduced and commented as well.

  此外，还就疲劳裂纹闭合现象的几种有代表性的定量模型做了介绍和评论。

• the results turn out to be that the short cracks exhibit severe crack deflection and week crack closure effect.

  试验和分析结果表明，短裂纹扩展的偏折强烈，裂纹闭合效应较小。

• compressive residual stress increases the crack closure effect at the notch and may lead to a non-propagating crack.

  残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。