root crack
英 [ruːt kræk]
美 [ruːt kræk]
（焊缝）根部裂纹
双语例句
- Hence lack of fusion and slag would exist at the weld root and create a large initial crack condition.
因而未熔透及夹渣存在于焊缝棍部，并造成大的初始裂纹条件。 - It is concluded that the original crack of billet is the root of the side longitudinal crack of jobbing sheet.
确认了板坯原始裂纹是造成中板边部纵向裂纹的根源。 - By means of the fracture process simulation the variation of the root stress intensity factor with the crack propagation trajectory and the fracture process are analyzed, and the method of the calculation of the tooth fracture strength and the significance of the fracture process are explained.
通过齿轮断裂过程有限元仿真，分析了齿根应力强度因子随裂纹深度的变化和轮齿断裂路径，说明了齿轮断裂强度的计算方法和断裂过程仿真的意义。 - Because of strengthening rib is not to simultaneous coagulating with thin wall position of casting steel piece, the strengthening rib root of reducer case made from casting steel is easily to produce hot crack.
铸钢减速机壳体加强筋根部易产生热裂纹，其原因是加强筋与薄壁处不能同时凝固。 - Measurement of Residual Stress at Notch Root and Crack Tip by X-ray Diffraction
缺口根部和裂纹尖端残余应力的X射线法测定 - The formula on the relationship between the fracture toughness ( K IC) of PMMA and the critical radius ( ρ c) of notch root has been deduced by analyzing the characteristics of stress and strain at notch and crack tip.
根据聚甲基丙烯酸甲脂圆棒试样切口根部及裂尖钝化的应力应变特性，推导了聚甲基丙烯酸甲脂断裂韧性与临界切口半径ρc的关系式。 - The variation of the critical event is considered to be related to the difference of effective shear stress ahead of a notch root or a crack tip.
临界事件的变化认为与缺口根部和裂纹前端不同的有效剪应力有关。 - The index of cohesive stress singularity is square root, and it is a function of polynomial parameters expressing both the crack opening displacement and the stress intensity factor K of linear elastic body without cohesive force along the FPZ.
从而本文提出一个能够反映裂纹发展状态的粘聚应力奇异性强度参数，它是无粘聚力的线弹性裂纹应力强度因子和表征裂纹张开位移分布多项式参数的函数； - Measurement of residual stress at notch root and crack tip can be realized with a precise setting device for specimen and a X-ray of small beam size and high intensity.
X射线法用于缺口根部和裂纹尖端等徽区的残余应力测试的先决条件是解决缩小光束直径、提高衍射束的强度和准确设置试样等技术问题。 - Human action, rodent and root hole as well as seismic crack also give influences on it.
人为活动、动物孔穴、植物根孔和地震裂隙刘其也有影响。 - As compared with overmatching electrodes, the undermatching ones effectively lower the preheating temperature required for preventing root crack caused by the first-pass welding on heavy plates of low alloy high strength structural steels.
在厚板低合金高强钢的焊接中，与采用高组配焊条相比，用低组配焊条能有效的降低为防止由第一道焊道所引起的焊根裂纹所需要的予热温度。 - The results obtained for permeable crack show that the field variables near the crack tip in a functionally graded piezoelectric strip all possess the square root singularity, and they are in terms of the local coordinates attached to the moving crack tip;
结果表明，对于电渗透型裂纹，功能梯度压电板条中运动裂纹尖端附近的各个场变量都具有-1/2阶的奇异性，而且与固定于裂纹尖端的运动坐标有关； - The effects on the seeding and root of radish is evidently different among varieties of alfalfa, So is the effects on the activity of SOD and POD. the crack resistances are significantly different among varieties;
同一处理浓度下，紫花苜蓿根浸提液对受体萝卜幼根和幼苗的生长及其体内SOD活性和POD活性的影响方面，品种间存在显著的差异。 - The partial stress strain field at the root of notch is qualitatively analyzed by elastic-plastic theory. So doing this the boundary point between long crack and short crack could be determined.
采用弹塑性理论定理分析缺口根部局部应力应变场来确定长短裂纹分界点。 - It was taking root, sprouting in the shade and crack of the European music cultures, and finally it spread the beautiful lights.
非洲黑人音乐文化在欧洲音乐文化的阴影和夹缝中顽强地生根、发芽，直至放出绚丽的光彩。 - The solutions show that the coupling fields have a square root singularity at the crack tips, and the stress and electric displacement intensity factors are independent of the piezoelectric material constant.
结果表明，耦合场在裂纹尖端有1/2阶的奇异性，应力和电位移强度因子均与材料常数无关。 - However, with the vehicle load and the speed increasing, heavy-duty gondola car body appeared serious issues, such as side wall bulge and the root of the crack which has posed a considerable threat on heavy-duty transportation security.
然而，随着车辆载重的增大和运行速度的加快，重载敞车车体出现了端墙外胀严重、端墙支撑根部出现裂纹等问题，对重载货运的安全已经构成了相当大的威胁。 - The experimental results was showed that the former one is sensitive to bolt root crack defects, but not good to defect inside the screw; the latter one is well in the screw of crack testing, but not well in the root of bolt crack testing.
通过检测实验结果表明：前者对螺栓根部的裂纹缺陷有良好的灵敏度，但对螺纹内缺陷检测效果不佳；后者对螺纹内的裂纹检测效果良好，但对螺栓根部裂纹检测信噪比差。 - The test results validate that the approach based on grey probability relational analysis is effective in degradation state recognition for sun gear root crack of planetary gear set. 4.
实验验证结果证实了基于灰色概率关联分析的方法对行星轮系太阳轮齿根裂纹退化状态识别的有效性。