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- The pattern of fracture by impact penetration test and tensile fatigue test of thermite welding with stereoscan was observed,and the component of defect with energy spectrum was analyed. 结果表明:微观缺陷主要包括微孔和夹杂,其中微孔由微气孔和微缩孔组成,夹杂物按形态和尺寸分为团簇状夹杂、锥状夹杂、粒状夹杂、积聚物夹杂、丝状夹杂和混合形夹杂。
- indirect tensile fatigue testing 沥青路面
- tensile fatigue test 拉伸疲劳试验,张力疲劳试验
- uniaxial tensile fatigue test 单轴拉伸疲劳试验
- indirect tensile fatigue test 劈裂疲劳试验
- tensile fatigue tests 拉伸疲劳试验
- By fatigue test of bolt material,the stress-strain life curve is obtained. 通过螺栓材料的疲劳试验,获得了材料的应力应变寿命曲线;
- Conduct material Fatigue Testing and Thermal stress test. 进行材料疲劳测试和热应力测试。
- Test method for pulsed tensile fatigue of welded joints 焊接接头脉动拉伸疲劳试验方法
- Test method for shear tensile fatigue of spot welded joints 点焊接头剪切拉伸疲劳试验方法
- Based on the program load spectrum, intensified fatigue test for rearaxleare made. 在编制程序载荷谱的基础上,对后桥壳体进行了强化疲劳试验。
- The method of correlation factor is an effective method to loads transacting of the fatigue test of airplane structure. 相关系数法是一种有效的飞机疲劳试验载荷处理方法。
- In order to overcome such problem, a new technique named as VFT (Virtual Fatigue Test) has been offered in this paper. 为了克服这两个难点,论文提出了基于虚拟样机理论的“虚拟疲劳试验”技术。
- Fatigue test is done on medium carbon steel specimens with small surficial pre-cracks and single-edge pre-cracks. 采用带有微小表面预制裂纹和边缘预制裂纹的中碳钢试验片进行了疲劳实验。
- The piston rod of family sedan's rear snubber fractured duringearlier stage of rotary bending fatigue test. 家轿后减振器活塞杆在进行旋转弯曲疲劳试验时出现早期断裂。
- Tne formula under given fracture length is verified by fatigue test datas of welded box girder on overhead travelling crane. 并用桥式起重机焊接箱形梁的疲劳试验数据,对给定裂纹长度时构件疲劳可靠度的计算公式进行验算。
- Pb-free solder;BGA;thermal cycling;dynamic fatigue tests;electrical analysis. 关键词:无铅焊锡;球格阵列构装;冷热循环试验;动态疲劳试验;电性分析
- Abstract: The piston rod of family sedan’s rear snubber fractured during earlier stage of rotary bending fatigue test. 摘 要: 家轿后减振器活塞杆在进行旋转弯曲疲劳试验时出现早期断裂。
- At present,tuning-folk resonance plate structure is common used in crankshaft bending fatigue test bench in domestic diesel engine industry. 目前,国内柴油机行业普遍使用的曲轴弯曲疲劳强度试验台架,均采用音叉共振板结构。
- The effect of temperature on cyclic fatigue life and fracture mechanism on 2524-T4 aluminum alloy was studied by cyclic fatigue test,SEM and TEM. 采用疲劳实验、SEM及TEM等分析测试手段,研究温度对2524-T4合金疲劳寿命及断裂机制的影响。