Then the structural accident of total section drive-through type crack is caused in arch frame top chord, which is induced by hoisting and detection using pulley arbitrarily.
铜绿山矿某三铰拱屋架单轨吊梁结构体系，因技术改造增加设备简体重量，随意用滑轮组起吊检修，导致拱架上弦全截面贯通式开裂的结构事故。
Fracture lines start from the outside and spread over the whole cross section, particularly starting in the fillet area and very often after a fatigue crack propagation.
断裂面从轴承部位外部开始延伸到整个截面。典型的是从圆弧部开始，常常会由于疲劳而产生的裂纹的扩展后引起的。
Change of section appearance is related to stress concentration of glass fiber on the base resin and on hindering of crack extension.
断面形貌的变化与玻纤在基体树脂中的应力集中作用及对裂纹扩展的阻碍作用有关。
Design and analysis: loading combinations, section steel area calculating, earring capacity computation, section stress checking, deformation and crack width checking and so on.
设计分析：含荷载组合计算、截面配筋设计、承载能力计算、截面应力验算、变形及裂缝宽度验算等。
Consequently the crack on the wall is begot. The crack is concerned with horizontal resistance coefficient, temperature, size of wall section, elastic modulus.
裂缝的产生与二者之间的水平阻力系数、温度以及墙体截面尺寸和弹性模量有关。
After the comparison of the load-transfered capacities in the same section with different crack width, it is found that the wider the crack is the poorer load-transferred capacity will be.
通过同一截面不同裂缝宽度下传荷能力的比较发现裂缝宽度越大传荷能力越差。
The difference of mechanism between normal section fatigue crack resistance and static crack resistance for prestressed concrete members was analyzed.
针对预应力混凝土构件的正截面疲劳开裂机理与静力开裂机理的差异。
The crack disasters of bridge are common in Guangyuan section on the 108 National Highway because of complex geological and geomorphological conditions, heavy loading and bad quality of construction.
国道108线广元段由于地质地貌条件复杂、重载作用及施工质量未能保证，桥梁裂缝病害较为普遍。
A section of dialogue of his is: Why want, say good-bye two people, that because two people of emotion crack of appearings;
他的一段对白是：两个人为什么要分手呢，那是因为两人的感情出现的裂痕；
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。
In this paper, the torsion crack problem for a bar with cross section containing cusp points is discussed.
在本文中讨论了带裂纹杆的扭转问题，并设扦的截面周边具有回归点。
This section will introduce the concept of Fracture Mechanics and initiation and growth mechanism of fatigue cracks, in particular, fatigue crack developed from welding defects.
本节将介绍结构断裂力学概念，礼炮裂纹的起始和生长机理。尤其是从焊接缺陷开始的疲劳。
The test research results on fatigue behaviour of inclined section of crack-permitted partially prestressed concrete beams are briefly described in this paper.
本文概要地介绍了允许出现裂缝的部分预应力混凝土梁斜截面疲劳性能的试验研究结果。
Using replacement of cooling section to repair intercooler resulted in free crack and leakage, and lower maintenance cost.
采用抽换散热单节进行中冷器修复后无裂漏，并降低了检修成本。
But when according to the site conditions determined to crack a drilling section with oblique relations, hole spacing can enlarge exploration.
但当根据现场条件确定的钻探剖面与地裂缝呈斜交关系时，勘探孔间距可以适当放大。
By using this system, a series of functions for measuring the size of the fatigue section, integrating the area of region and determining the Angle of the crack can be completed.
该系统可实现疲劳断口条纹尺寸测定、区域面积积分、裂纹角度测量等功能。
The retardation of tensile overload will reduce the 321SS crack growth speed for the furcation on the fracture section.
拉伸超载能阻滞321不锈钢的疲劳裂纹扩展速率，样品断面有明显的周期性的裂纹偏折或分叉；
Crack perpendicular to the axis is caused on too rapid quench cooling, non-hardenability of the thick-walled department, as well as mutation of cross-section size. This is a typical arc-shaped crack.
垂直于轴线的裂纹是因为淬火快速冷却时。厚壁处未淬透以及截面尺寸突变产生的弧形裂纹。
Crack perpendicular to the axis is caused on too rapid quench cooling, non-hardenability of the thick-walled department, as well as mutation of cross-section size. This is a typical arc-shaped crack.
垂直于轴线的裂纹是因为淬火快速冷却时。厚壁处未淬透以及截面尺寸突变产生的弧形裂纹。
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