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composite crack
相关语句
  裂纹
     Estimation of Critical Crack Length and Residual Life of Ⅰ-Ⅲ Composite Crack
     Ⅰ-Ⅲ复合型临界裂纹长度及剩余寿命的估算
短句来源
     By using stress strength factors considering crack surface turning instead of those nonconsidering crack surface twist,on the basis of maximum strain criterion within a small range of yield strength,the critical crack length of the Ⅰ Ⅲ comopsite crack is estimated. The residual life of Ⅰ Ⅲ composite crack is then estimated. The experiment shows that this estimation method can be used for engineering.
     以考虑裂纹面扭转的应力强度因子代替不考虑裂纹面扭转的应力强度因子 ,在小范围屈服条件下的最大应变准则的基础上 ,估算了Ⅰ Ⅲ复合型裂纹的临界裂纹长度 ,从而估算了Ⅰ Ⅲ复合型裂纹的剩余寿命 ,试验表明 ,此方法可以应用到工程上。
短句来源
     In the rupture process of the composite, crack deflexion, crystal evulsion, and rupture through crystal could be observed.
     渗透复合体在断裂过程中可见 :裂纹偏转、晶体拔出和穿晶断裂。
短句来源
     Assuming the working face in the strip extraction as a series of co-linear cracks with certain spacing interval,the Ⅰ-Ⅱ composite crack model in fracture mechanics was adopted to get the stress distribution at the edge of coal pillar,so the border equation of the edge of coal pillar was created. Accordingly the formula for calculating damaged width of the strip coal pillar was obtained.
     将条带开采工作面假定为无限大板上相隔一定间距的倾斜共线裂纹,采用断裂力学Ⅰ-Ⅱ复合型裂纹模型,得到了条带煤柱边缘的应力分布,建立了条带煤柱边缘破坏区的边界方程,并据此得出了条带煤柱破坏宽度的计算公式。
短句来源
  复合型裂纹
     By using stress strength factors considering crack surface turning instead of those nonconsidering crack surface twist,on the basis of maximum strain criterion within a small range of yield strength,the critical crack length of the Ⅰ Ⅲ comopsite crack is estimated. The residual life of Ⅰ Ⅲ composite crack is then estimated. The experiment shows that this estimation method can be used for engineering.
     以考虑裂纹面扭转的应力强度因子代替不考虑裂纹面扭转的应力强度因子 ,在小范围屈服条件下的最大应变准则的基础上 ,估算了Ⅰ Ⅲ复合型裂纹的临界裂纹长度 ,从而估算了Ⅰ Ⅲ复合型裂纹的剩余寿命 ,试验表明 ,此方法可以应用到工程上。
短句来源
     Assuming the working face in the strip extraction as a series of co-linear cracks with certain spacing interval,the Ⅰ-Ⅱ composite crack model in fracture mechanics was adopted to get the stress distribution at the edge of coal pillar,so the border equation of the edge of coal pillar was created. Accordingly the formula for calculating damaged width of the strip coal pillar was obtained.
     将条带开采工作面假定为无限大板上相隔一定间距的倾斜共线裂纹,采用断裂力学Ⅰ-Ⅱ复合型裂纹模型,得到了条带煤柱边缘的应力分布,建立了条带煤柱边缘破坏区的边界方程,并据此得出了条带煤柱破坏宽度的计算公式。
短句来源
  “composite crack”译为未确定词的双语例句
     Designers, usually, only consider the whole stability of body-foundation of the dam after setting base joint, while ignore the stability of base joint itself. In this paper, the method of fracture finite element was applied, by applying Williams's formula I calculated the stress intensity factor of base joint after knowing the displacement field of tip of base joint then distinguished the stability of base joint by terms of composite crack's K fracture criterion.
     通常设计中仅考虑了设置底缝后坝体——坝基整体稳定性,而忽略了底缝作为人工裂缝其本身的稳定性,本文对底缝本身的稳定性进行了分析,采用断裂有限元法,用Williams公式计算出底缝尖端的应力强度因子值,再根据复合型裂缝断裂的K判据来判别底缝的稳定性。
短句来源
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  composite crack
The problem of a composite crack interacting with a circular misfitting inclusion in an infinite elastic medium is investigated.
      
The interacting stress field around a composite crack with a misfitting inclusion
      


A fracture mechanics analysis of the crack-bridging in an uniaxially fiber reinforced composite ispresented. The integral equation governing bridge-toughening as well as crack opening displacementCOD) for the composite with a power law hardening plastic interphase are constructed based on thereference [2]. Numerical results of the COD equation etc. are obtained by means of iteration-solutionmethod of the nonlinear Volterra integral equation. The effect of inter facial parameters on the toughening of composite...

A fracture mechanics analysis of the crack-bridging in an uniaxially fiber reinforced composite ispresented. The integral equation governing bridge-toughening as well as crack opening displacementCOD) for the composite with a power law hardening plastic interphase are constructed based on thereference [2]. Numerical results of the COD equation etc. are obtained by means of iteration-solutionmethod of the nonlinear Volterra integral equation. The effect of inter facial parameters on the toughening of composite crack-bridging is discussed in detail.

对具有幂硬化塑性剪切界面层效应的复合材料桥联进行断裂力学分析,得到了桥联增韧和裂纹张开位移的控制方程,并按照非线性Volterra型积分方程的迭代解给出其数值结果。并详细讨论界面相参数对桥联效应的影响。

In the category of elastodynamic fracture, the present paper investigates the problem of SH-wave scattering by cracks of any limited lengths originating at the boundary of a cylindrical hole, and gives the solutions of dynamic stress intensify factor at the crack tip. The Green's Function method is used. That means a special Green's function, which is a fundamental solution of displacement field for an elastic half space possessing a half cylindrical gap while bearing out of plane harmonic line source force...

In the category of elastodynamic fracture, the present paper investigates the problem of SH-wave scattering by cracks of any limited lengths originating at the boundary of a cylindrical hole, and gives the solutions of dynamic stress intensify factor at the crack tip. The Green's Function method is used. That means a special Green's function, which is a fundamental solution of displacement field for an elastic half space possessing a half cylindrical gap while bearing out of plane harmonic line source force at any point of its horizontal boundary, is constructed for the present problem. In terms of the solution of SH wave scattering by a cylindrical hole, the material is divided into two parts along X axis and cracks can be made out with crack-division technique. There are two important steps in the technique of crack division. On one hand, anti plane stresses, which are the same in quantity but opposite in direction to those produced by SH waves mentioned before, are loaded at the region where cracks will appear. If the region begins at hole edge and extends to a limited distance, the composite crack is made out in the medium. On the other hand, anti plane stresses that are unknown must be applied in the non crack region of division interface in order to satisfy the continuity conditions at division plane. Then, integral equations for solution of the unknown stresses, which is connected with crack tip DSIF, can be established, and the solution of dynamic stress intensity factor in mode III can be obtained. Finally, some examples and results for dynamic stress intensity factor are given, and the influence of circular hole to dynamic stress intensity factor at crack tip is discussed. It is indicated that the traditional opinion about composite crack simplification is not right in dynamic case. Simplifying composite crack to Griffith linear crack is not always safety in dynamic fracture.

采用Green函数法研究任意有限长度的孔边裂纹对SH波的散射和裂纹尖端场动应力强度因子的求解.取含有半圆形缺口的弹性半空间水平表面上任意一点承受时间谐和的出平面线源荷载作用时位移函数的基本解作为Green函数,采用裂纹“切割”方法并根据连接条件建立起问题的定解积分方程,得到动应力强度因子的封闭解答.最后给出了孔边裂纹动应力强度因子的算例和结果,并讨论了圆孔的存在对动应力强度因子的影响

By using stress strength factors considering crack surface turning instead of those nonconsidering crack surface twist,on the basis of maximum strain criterion within a small range of yield strength,the critical crack length of the Ⅰ Ⅲ comopsite crack is estimated.The residual life of Ⅰ Ⅲ composite crack is then estimated.The experiment shows that this estimation method can be used for engineering.

以考虑裂纹面扭转的应力强度因子代替不考虑裂纹面扭转的应力强度因子 ,在小范围屈服条件下的最大应变准则的基础上 ,估算了Ⅰ Ⅲ复合型裂纹的临界裂纹长度 ,从而估算了Ⅰ Ⅲ复合型裂纹的剩余寿命 ,试验表明 ,此方法可以应用到工程上。

 
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