| 1. | Recommended practice for vibration stress relief on welding structure
焊接构件振动时效工艺.参数选择及技术要求 |
| 2. | The calculated result shows that the fatigue damage in the critical welded components is accumulated in the region of toe of welding
最后，考虑到实际焊接构件往往会存在初始缺陷，进一步研究了含初始缺陷的桥梁焊接构件的疲劳分析方法。 |
| 3. | However , a further investigation is still needed in order to interpret the test results of cross - weld specimens for application in practical welded components
但是试验室的焊缝试样能否真实地反映焊接构件的力学行为，则仍是需要进一步研究的问题。 |
| 4. | Abstract : the reliable design of high temperature strength of welded components is of significant importance in assuring the structural integrity of pressure vessels and pip at elevated temperature
文摘:焊接构件的高温强度的可靠设计对保证高温压力容器及管道的结构完整性具有十分重要的意义。 |
| 5. | Biaxial stress of ferromagnetic materials and residual stress of welding components have been measured by using the relation between barkhausen effeet based on the law of approach to saturation magnetization and internal stress
利用该技术，以近饱和磁化产生的巴克豪森效应与应力的关系，测量了铁磁构件的二轴应力和焊接构件的残余应力。 |
| 6. | These results would be able to interpret stresses at the welded sections where there are no sensors installed in the evaluation on fatigue damage by using the strain - time history data obtained from the structural health monitoring system
这些初步成果为利用安装在桥梁结构健康监测系统上输出的应变时程数据，对这类焊接构件进行热点应力推算和准确合理的疲劳损伤评估提供了理论和计算基础。 |
| 7. | For more years , the welded members of steel structure are more popular than the rolled ones in china , but as is well known , the mechanical performance of welded members are effected by many factors : such as the material property of plates , the heat effect during welding process , the residual stress , the weld techniques and so on
一直以来我国使用的钢结构构件以焊接为主，轧制的较少。众所周知，焊接构件的力学性能将受诸多因素的影响，如焊接板材的材性是否一样、焊接产生的热影响以及焊接残余应力和焊接工艺等。 |
| 8. | This study aims at the analysis on local hot spot stress in critical components of long - span steel bridges and numerical simulation on the accumulated fatigue damage for the purpose of providing an accurate assessment of the accumulated fatigue damage and fatigue life of the components
本文的研究工作是围绕着大跨度桥梁在交通荷载作用下，关键焊接构件的局部热点应力分析和相应的疲劳损伤累积分析而展开的，目的为了对这些焊接构件内的疲劳损伤累积的过程进行比较准确的评估。 |
| 9. | In light of the uniaxial material tests and numerical simulations , the present paper reveals that the cross - weld specimen may be used for the high temperature strength assessment , but can hardly be used for simulation of the practical welded component , depending on the loading case of the component
本文根据实验室单轴试验和计算模拟，揭示了单轴焊缝试样的局限性：用于高温强度评价基本上是合适的，但用于模拟实际焊接构件的力学行为则误差甚大，这取决于焊缝的受力状况。 |
| 10. | Abstract : for analyzing the residual stress distributing state within the weld joint , and its effect on the performance of welding structure , when welding the ferrite pearlite steel with the austenite steel , this paper develops a finite element program to compute the interface stress of two or over two material . finally , this program is used to analyze the mechanical behavior of heterogenic joint
文摘:为了分析铁素体、珠光体类钢与奥氏体类钢焊接时，焊接接头处焊接残余应力的分布状态及其对焊接构件性能的影响，研制了可计算两种或两种以上材料界面应力的有限元程序，并用此程序分析了异质接头的力学行为。 |
