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首页> 外文期刊>Journal of Materials Engineering and Performance >Strain Rate Dependency of Simulated Welding Residual Stresses
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Strain Rate Dependency of Simulated Welding Residual Stresses

机译：模拟焊接残余应力的应变速率依赖性

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摘要

In the present work, the influence of taking into consideration the strain rate-dependent nature of steel S355 during a calculation of the welding residual stresses through a finite element simulation is investigated. The Perzyna material model is calibrated using experimental values found in the literature and is introduced to a validated weld simulation model, where the strain rate dependency had not been taken into consideration before this study. The calculated profiles of the welding residual stresses, for strain rate-dependent and independent behavior, are then compared with experimentally measured profiles. The results of this first-step analysis show that taking into consideration strain rate dependency during a welding simulation of the investigated S355 has non-negligible influence on the calculated welding residual stresses.
机译：在本作工作中，研究了考虑通过有限元模拟计算焊接残余应力期间钢S355的应变率依赖性的影响。 使用文献中发现的实验值校准Perzyna材料模型，并被引入验证的焊接仿真模型，其中在本研究之前未考虑应变率依赖性。 然后将焊接残余应力的计算曲线与实验测量的曲线进行比较。 该第一步分析的结果表明，在研究的S355的焊接模拟期间考虑了应变速率依赖性对计算出的焊接残余应力的影响不可忽略。

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