查询词典 crack

Combined with the condition of crack in concrete construction, the author analyzes the causes of cement stabilized sand gravel base course crack from dry shrinkage of mixture,temperature contraction,uneven settlement of roadbed and construction quality of base course,and introduces relevant preventive and control measures for it,which to ensure highway construction quality.

结合具体工程裂缝产生的状况，从混合料的干缩、温度收缩、路基不均匀沉降、基层施工质量四方面分析了水泥稳定砂砾基层裂缝的产生原因，并介绍了相应的裂缝预防控制措施，有利于公路建设质量。

Some meaningful conclusions had been made: 1. In the test, a form of subsurface crack is relative to the sclerometer's shape, when the top of the sclerometer is sharper the crack is easier form.

在该划痕试验中，亚表面裂纹与压头本身的形状有关；当压头顶部较尖锐时，在划痕深度一定的条件下，更容易产生裂纹； 2。

The results make it known that: in the same cycle degree, the crack propagation depth of finite element is greater than experiments, the inaccuracy between expriments and computer simulation tracing is lower than 10%, the tracing conclusion is securer than the experimental one; both directions of crack propagation are not identical.

当接管区出现裂纹时，则在疲劳载荷的作用下会加速扩展，从而降低设备的使用寿命，并且可能发生一些毫无征兆的事故。因而研究并掌握接管区表面裂纹的疲劳扩展特性对于预防接管区的失效破坏具有一定的学术和工程价值。

The new singular element at the end of a blunt crack is obtained,the new method for calculating stress intensity factors of blunt crack problems is presented.

利用其局部解构造了一种新的大曲率缺口位移模式；建立含大曲率缺口损伤结构有限元方程和与相应的缺口奇异单元；提出了求解大曲率缺口应力与应力强度因子等断裂参量的数值计算方法，数值算例说明本文方法是一种有效的数值计算分析方法。

Solid missile motor ; singular crack element ; interface crack ; stress-intensity factor ; storage ; debond

固体导弹发动机；奇异裂纹单元；界面裂纹；应力强度因子；贮存；脱粘

The stress intensity factors of pipes containing an elliptical arc of crack have been evaluated by collapsed singular element with the more detailed mesh on crack front and their respective adjacent areas.

中文摘要本论文对含内、外裂椭圆形裂缝之圆管应力强度因子计算，计算在椭圆形裂缝尖端部位附近，使用溃点奇异元素，建立有限元素的网格化自动产生模型，并利用ANSYS程式计算裂缝尖端的应力强度因子。

With the severity of crack problems increasingly of structures, which are made up of soft steel, to study diagnosis, control, and maintain of the crack, is a new hotspot in fault diagnosis areas.

随着由低碳钢构成的机械承载结构裂纹问题的日益严重，研究机械承载结构裂纹诊断、控制与维修已成为故障诊断学领域的新热点。

The surface crack on the medium and heavy plate of high-strength steel, which was newly developed by Jinan Steel, was analyzed systematically. The surface cracks of high-strength steel mainly include smaller slit, starlike crack or resillage.

对济钢新开发的高强钢中厚板出现的表面裂纹进行了系统的分析，高强钢裂纹主要表现为小纵裂、星形或网状裂纹。

On the basis of this, from the view of material selection, mixture grade, cement dose, the usage of additive and maintenance management, some measures are put forward for preventing cement-stabilized subbase from shrinking cracking, and the targets of reducing the crack odds of subbase and the crack widths, or staying subbase from cracking are obtained.

在此基础上，从材料选择、混合料级配、水泥剂量、外加剂的使用、养护管理等角度提出水泥稳定粒料基层收缩裂缝防治措施，达到减少基层收缩开裂几率、减少裂缝宽度或延缓基层开裂的目的。

This thesis utilizes the constitutive relationship of the concrete in one way Tension Compression and plain cross supposal It also transplants the basic supposal in Soil Mechanics to the calculation of loading crack , aiming at probing the calculating method of the width of the crack of reinforced concrete component

本文利用单向受拉，受压砼的本构关系和平截面假定，将土力学中的基本假定移植到荷载裂缝的计算中去，从而导出钢筋砼构件裂缝宽度的计算方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了