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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Effect of material's behavior on residual stress distribution in elastic-plastic beam bending: An analytical solution
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Effect of material's behavior on residual stress distribution in elastic-plastic beam bending: An analytical solution

机译：材料特性对弹塑性梁弯曲残余应力分布的影响：解析解

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摘要

A considerable residual stress distribution can be produced while bending of parts. This stress distribution depends on material behavior. In this article, residual stress distribution has been determined through the thickness in beam bending. For three different models of elastic-plastic behavior, the stress distribution and maximum residual stress are derived analytically. The residual stress is compared for three different bending radii as a case study. Also, finite element analysis has been carried out for two material properties. The results show that material behavior has little effect on stress distribution for large value of bending radius. As the bending radius decreases, difference of stress distribution increases rapidly among three plastic behaviors. Comparing the results of finite element and analytical stress distribution shows good accuracy for suggested formulations.
机译：零件弯曲时会产生相当大的残余应力分布。这种应力分布取决于材料的行为。在本文中，残余应力分布已通过梁弯曲中的厚度确定。对于三种不同的弹塑性行为模型，可以通过分析得出应力分布和最大残余应力。作为案例研究，比较了三个不同弯曲半径的残余应力。而且，已经对两种材料特性进行了有限元分析。结果表明，对于较大的弯曲半径值，材料行为对应力分布影响很小。随着弯曲半径的减小，三种塑性行为之间的应力分布差异迅速增大。比较有限元和分析应力分布的结果表明，所建议的公式具有良好的准确性。

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