本文研究了加衬套对耳片的加强与止裂作用。
This paper studies the strengthening and crack-stopping effects of an interference-fit bushing on an attachment lug.
并对止裂与封闭后的试样进行了有关的检验和测试。
The test pieces with crack enclosed have been detected after the crack preventing.
脉冲放电止裂后，可对带有裂纹的表面进行强化处理。
The experiment shows that fusion welding reinforcement could proceed on the surface with crack of the die after crack arresting.
本文提供的分析计算方法，可供工程绕丝止裂设计参考。
The calculating method given in this paper can be used as reference in engineering design of wire-wrapped crack arrestor.
如何正确合理地确定管材止裂韧性数值是这一问题的关键。
How to accurately determine the line pipe anti-crack toughness value is the key of this problem.
止裂后的裂纹尖端变得十分圆整。达到了钝化止裂的目的。
The curvature of crack tip increased after crack arresting, so the crack tip was passivated.
复合型裂纹起裂、扩展和止裂问题一直是断裂力学研究的重点。
The study of problems involving crack initiation, propagation and arrest is always the interest of fracture mechanics.
X65钢母材的抗开裂性能明显优于焊缝，且具有良好的止裂性能。
The crack resistance of X65 steel is much better than that of the weld and X65 pipeline steel has good crack arrest property.
在石油、化工等行业的堵漏止裂、应急修补方面有很大的实用价值。
It can find great use for stopping leaks or cracks or urgently mending, etc in petroleum, chemical and other industries.
同时研究了金属模具中局部裂纹实施跨越止裂时的温度场和热应力场。
The temperature and thermal stress are found using electromagnetic heating applied to cracks, both localized and half-embedding, with partial crossovers in metal dies.
并由此提出以落锤试样静载弯曲试验做为一种新的简易止裂试验方法。
So it is pointed out that the drop test sample static bending test is a new and simple crack stop test. The experimental result indicated that the method is available.
在对已有典型止裂试验进行分析的基础上，总结出止裂试验的设计思想。
Basic on the analyses to typical crack stop tests, the design idea of crack stop is summarized.
对含半无限长直线裂纹的无限大导电薄板的热电磁止裂问题进行了研究。
The thermo electromagnetic crack preventing process was studied in the infinite thin conducting plate loath a semi infinite straight crack within .
讨论了电磁热裂纹止裂时脉冲放电瞬间的电流、温度和热应力的耦合关系。
The coupling of current, temperature and stress has been proposed in crack arresting by the electromagnetic heat effect at the moment when a pulse current is switched on.
根据断裂力学的原理，提出了脆性破裂的止裂准则，给出了最小止裂方程。
Based on the principle of fracture mechanics, the stop criterion of brittle fracture is proposed and the equation of minimal crack stop is given.
采用复变函数方法，建立了金属模具电磁热效应空间裂纹止裂的理论分析模型。
The main work can be outlined as follow:(1) The complex function method is used as a basis for the theoretical model of the space crack prevention in metal dies using electromagnetic heating.
并讨论了止裂抑爆结构参敏的合理选择与计算，给出了计算机辅助设计计算的程序。
It also discusses the reasonable se-lection and computation of structural parameters for arresting crack and burst and gives the computation program aided by computer design.
显微组织分析证明：止裂处出现了强韧性极高的超细化组织，改善了裂尖处的机械性能。
The analysis on microstructure showed that the super fine structure appeared at crack arresting area, the mechanical properties were improved.
选择带有空间斜裂纹的2a12铝合金试件进行了拉伸载荷作用下电磁热在线止裂研究。
A study of crack prevention under tensile load is performed on an aluminum alloy 2a12 specimen with an oblique spatial crack by using electromagnetic heating online.
研究了带有有限长裂纹的导电薄板在垂直于裂纹的方向上通入直流电流时，裂纹的止裂问题。
The crack arresting problem in a thin current carrying plate was studied for the situation of providing a DC current perpendicularly toward the crack direction.
通过试件的疲劳寿命试验与计算，研究了空止裂孔与铆钉填充止裂孔对构件裂纹的止裂作用。
Through a fatigue life experiment on a sampling part, and with a thereafter algorithm, the different effectiveness are determined between the empty stop-crack holes and riveted stop-crack holes.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
采用理论分析和实验研究的方法讨论了应用电磁热效应对金属构件中裂纹实施局部跨越止裂的技术。
In this paper, a theoretical analysis and experiment surveys are presented for simulating crack prevention by bridging over near crack tip under electromagnetic heating effect.
采用理论分析和实验研究的方法讨论了应用电磁热效应对金属构件中裂纹实施局部跨越止裂的技术。
Using theory of electromagnetic heat effect, the possibility of crack arrest on 35 steel was studied by super intention pulses electric current generator.
研究了各种实际金属模具中裂纹电磁热止裂后的修复技术，如电火花放电熔焊搭桥、强化堆焊、刷镀等；
The techniques for repair are studied after crack arrest in metal dies using electromagnetic heating, such as electrical spark melt joining, reinforced build-up welding and brush electroplating.
计算结果表明：在断裂损伤数值计算中考虑锚杆对裂隙的增韧止裂作用可以更好地反映锚杆的加固效果。
The results show that considering the effect of fracture toughness increment and retardation of crack of anchorage, better effect of anchorage is reflected in numerical fracture and damage simulation.
自主设计了改进型ZL - 2超强脉冲电流发生装置，采用它实现了金属模具试件中裂纹的电磁热止裂。
The space crack arresting in metal die has been conducted on a new super-density pulse current generator model ZL-2 designed by author.
本文主要论述了动荷载作用下岩石等脆性材料的断裂破坏机理、裂纹形成与扩展以及裂纹的止裂与控制等内容。
Fracture mechanism, initiation and propagation of cracks, and the control method of cracks in rock like brittle material under dynamic load are described in this paper.
本文主要论述了动荷载作用下岩石等脆性材料的断裂破坏机理、裂纹形成与扩展以及裂纹的止裂与控制等内容。
Fracture mechanism, initiation and propagation of cracks, and the control method of cracks in rock like brittle material under dynamic load are described in this paper.
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