section crack

The result has shown that the fracture was caused by such surface defects as fold crack in section A at connecting rod small end.

结果表明，断裂由连杆小头A截面的表面缺陷（折叠裂纹等）引起。

The results show that the tension intensity of slice is up to 100 MPa and the im-pact intensity up to 25 kJ/ m~ 2, and linear relation between crack section and the fractal dimension is established.

结果表明，板材拉伸强度达到100MPa以上，冲击强度为25kJ/m~2。材料拉伸强度与断面视图的分维数呈正线性关系。

Finally, micro-characteristics of SHS welding joints, formation of seam and shape of crack section are discussed.

讨论了SHS焊接接头显微结构特征, 焊缝的形成过程及断口形貌等等.

In the method, control equations for the crack resistance capacity of the normal section are established, thus the area of prestressed steel tension member may be calculated.

该方法首先建立了构件在正常使用极限状态下的抗裂性能控制方程，并以此求解预应力筋的面积；

Comparing the original design, Check the results of Flexural Performance of safety reserves and crack resistance of normal cross section, diagonal cracking performance before and after optimization.

对比原设计验算结果，分析优化前后结构抗弯性能安全储备及正截面抗裂性能、斜截面抗裂性能。

However, with the exploitation of reservoirs, the improper working system or the injected water entering into the horizontal section through crack will cause the problem of horizontal wells producing water, then the measures of profile control and water shutoff should be taken.

在水平井注水开发过程中，由于注入水随裂缝进入水平井段，引起水平井出水问题，需要对其采取调剖堵水处理措施。

This text keeps the crack defect of tank floor plate simplification and turns into a few kinds comparatively suppleness analysis model in figure, namely the V shape section crack defect, rectangle section crack defect and combinational form section crack defect.

本文把储罐底板表面裂纹简化成形状相对简单的几种分析模型，即V形端面裂纹、矩形端面裂纹以及组合形端面裂纹。

According to the standard, the specimen with prefabricated fatigue crack has a standard 3 points bending shape that has a rectangular section of B × 2B ( B: specimen thickness) and notch orientation of thickness direction.

取尺寸为B（板厚）×2B、缺口方向为板厚方向、带预制疲劳裂纹的标准试样进行三点弯曲试验。

Taking the crack area, direction, space and density as the major influencing factors of the damage variable, we stack the damage contribution of groups of cracks on each section to describe the anisotropic damage approximatively.

以节理面面积、节理面方向、节理面间距及节理密度作为损伤变量的主要影响因素，将多组裂隙面在各截面上的损伤贡献进行叠加来近似描述多组裂隙面的各向异性损伤。

After cutting, shear section shall be checked for no lamination and shear crack.

切割后, 应检验切割部分有无夹层,切割裂纹.

Concrete and masonry is weak in tension and crack when the tensile strain is of the order of 0.000 2~ 0.000 5, the dangerous section of split is very dangerous.

砼及砌体抗压强度高，抗拉强度很低，极限拉应变约为0.0002～0.0005，危险截面是脆性破坏，因此裂缝的出现和开展是危险的。