裂纹

Reducing the height of trimming cut zone of chain hook screw properly, increasing the final forging temperature, and keeping appropriate clearance between punch and die, using punch with sharp cutting edge can reduce the cutting stress.

适当缩小链钩螺杆锻造时的切边带高度、提高终锻温度、保持凸模与凹模之间适当的间隙、使用锐利刃口凹模都能降低锻造切边应力；降低热处理时的淬火应力，通过回火消除大部分热应力及组织应力，切边带的裂纹便得到有效控制。

Of their relatively small cross sectional area, which does not allow them to sustain high stress.

由于其横截面积相对小，不能承受大的应力，所以点焊处容易产生裂纹。

Some seeable cracks have been produced on the saddle shaped end beams of trolley frame for 150 t metallurgy crane after more than 10 year service .

某150t冶金起重机，投产运行10多年时间后，主小车架马鞍形端梁局部产生可见裂纹。

The micro crack behavior in ice is the key factor for describing and explaining ice-induced self-excited vibration.

冰内部的微裂纹行为是解释与描述冰致自激振动的关键要素。

As shown in some papers the self-excited vibrations are major reasons of causing serious damage to the rotating machinery.

有关资料表明，汽轮发电机组的重大事故的诱因中轴系振动已远远超过转子裂纹，其中自激振动和扭振引起的故障占绝大多数。

The effects of curvature radius R of the cylindrical shell with circumferential semielliptical surface cracks on stress intensity factors K_Ⅰ are investigated.

本文探讨了含周向内、外半椭圆表面裂纹圆柱壳体的曲率半径对其应力强度因子K_1的影响。

Obtain K 1 at a sequence of points along a 3D crack front with a single mouse click.

一个鼠标点击，就可以得到三维裂纹尖端一系列点的。

This shear force increased with the roughness of the surface.

镀层表面越粗糙，垂直于氧化膜的切应力分量越大，表面裂纹和锡须生长也越多。

The shearing stress on an octahedral plane is used as a rarameter to analyse crack -producing problems under mixed mode fracture and the crack producing direction is considered as the direction with mimimal displacement from crack tip to plasticity boundary.

本文采用剪应力强度因子作为断裂的参数，分析复合型断裂问题，认为裂纹扩展方向为塑性区最短距离方向。

Finally, possible applications of the SIE to the scattering problems of cracks are suggested.

最后展望了奇异积分方程在裂纹体散射问题中可能的应用前景

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。