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首页> 外文会议>International conference on structural engineering, mechanics and computation;SEMC 2010 >Residual stresses of high strength bolts with large diameters
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Residual stresses of high strength bolts with large diameters

机译：大直径高强度螺栓的残余应力

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Longitudinal residual stresses thread roots of bolts seem to have an effect on the fatigue resistance.rnIn the whole manufacturing chain of bolts it is likely that especially the thread rolling induces residual stressesrndue to large plastic deformations. This paper deals with the determination of the residual stress distribution inrnthe thread range along the manufacturing chain of hot galvanized bolts with threads rolled before heat treatment.rnThe development of the residual stresses is determined under consideration of single manufacturing steps byrndestructive testing methods. In addition, results of numerical simulations regarding the thread rolling processrnare presented.
机译：螺栓的纵向残余应力似乎会影响疲劳强度。在整个螺栓制造链中，尤其是螺纹滚压可能会由于较大的塑性变形而引起残余应力。本文探讨了在热处理前轧制的热镀锌螺栓在生产过程中沿螺纹链在整个螺纹范围内残余应力分布的确定方法。通过破坏性测试方法，在考虑单个制造步骤的情况下确定了残余应力的发展。另外，给出了关于螺纹轧制过程的数值模拟结果。

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