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首页> 外文会议>International Symposium on Residual Stresses >Determination of residual stress distribution in autofrettaged tube based on modified yielding criterion and tensile-compressive curve of material
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Determination of residual stress distribution in autofrettaged tube based on modified yielding criterion and tensile-compressive curve of material

机译：基于改进的屈服标准和材料拉伸压缩曲线的自动压缩管中残留应力分布的测定

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摘要

An autofrettage model considering the material strain-hardening behavior and the Bauschinger effect, based on the actual tensile-compressive curve of material and modified yield criterion, has been proposed. The analytic expressions of residual stress distribution and the autofrettage pressure have been obtained. This model has stronger curve fitting ability, nearly all of the strain-stress curves of materials used in making autoefrettage tubes can be fitted well by this model, and each of those models based on the simplified strain hardening relationship of material is a special case of the model. It was used to predict the residual stress distributions of an autofrettaged tube. The results show that the residual stress distributions predicted by the present model are in good agreement with the experimental data.
机译：提出了一种基于材料和改性产量标准的实际拉伸压缩曲线的材料应变硬化行为和Bauschinger效应的自动调节模型。已经获得了残余应力分布和自动发电压力的分析表达。该模型具有较强的曲线拟合能力，几乎所有用于制造自动压缩管的材料的所有应变应力曲线都可以通过该模型很好地安装，并且每个基于材料的简化应变硬化关系的模型是特殊情况该模型。它用于预测自动反射管的残余应力分布。结果表明，本模型预测的残余应力分布与实验数据吻合良好。

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