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首页> 外文期刊>Journal of Materials Engineering and Performance >Influence of the Strength Mismatch of a Narrow Gap Welded Joint of SA508 on the Plastic η Factor
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Influence of the Strength Mismatch of a Narrow Gap Welded Joint of SA508 on the Plastic η Factor

机译：SA508窄缝焊接接头强度不匹配对塑性η因子的影响

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摘要

In this article, the influence of the strength mismatch of a narrow gap welded joint of SA508 on the η factor was evaluated. The η factor is the principal parameter that determines the plastic portion of the J-integral. The specimens for tensile and hardness tests were collected from piping with narrow gap welding and the stress-strain curve and hardness were obtained from those. From these results, the Ramberg-Osgood (R-O) constant was obtained. Also, the finite element analysis was performed with variations in the strength mismatch and the weld width. The η factor equation considering the strength mismatch and the weld width of a narrow gap welded joint was suggested.
机译：在本文中，评估了SA508窄缝焊接接头的强度失配对η因子的影响。 η因子是确定J积分可塑性部分的主要参数。从窄缝焊接的管道中收集用于拉伸和硬度测试的样品，并从中获得应力-应变曲线和硬度。根据这些结果，获得了Ramberg-Osgood（R-O）常数。同样，在强度失配和焊接宽度变化的情况下进行了有限元分析。提出了考虑强度不匹配和窄缝焊接接头焊接宽度的η因子方程。

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