| 辊弯曲宽翼缘构件残余应力的有限元模拟 |
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| 作者姓名： | R.C.Spoorenberg H.H.Snijder J.C.D.Hoenderkamp |
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| 摘 要： | 弯曲宽翼缘钢构件常用于建筑和桥梁中,并在室温下通过辊弯机进行弯曲。辊弯过程改变了构件残余应力分布,可能影响拱构件的弹塑性屈曲性能。考虑材料非线性、几何非线性及接触,进行数值模拟,分析辊弯过程中弯曲宽翼缘构件的残余应力。将模拟结果与试验结果进行比较,结果表明:下翼缘吻合很好,上翼缘吻合较好,腹板吻合一般。结果证明有限元分析方法可用于研究辊弯曲宽翼缘构件的残余应力。
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| 关 键 词： | 残余应力 曲钢 辊弯曲 有限元分析 塑性变形 |
Finite Element Simulations of Residual Stresses in Roller Bent Wide Flange Sections |
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| R.C.Spoorenberg,H.H.Snijder,J.C.D.Hoenderkamp.Finite Element Simulations of Residual Stresses in Roller Bent Wide Flange Sections[J].Steel Construction,2011(1):89. |
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| Authors: | RCSpoorenberg HHSnijder JCDHoenderkamp |
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| Affiliation: | R.C.Spoorenberg,H.H.Snijder and J.C.D.Hoenderkamp |
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| Abstract: | Curved structural wide flange steel sections are frequently used in buildings or bridges.These sections are usually curved at ambient temperatures with a roller bending machine.This process alters the residual stress distribution,which may affect the elasto-plastic buckling behavior of arches.This paper presents a numerical modeling technique to estimate residual stresses in curved wide flange sections manufactured by the pyramid roller bending process.The technique incorporates material non-linearity,geome... |
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| Keywords: | Residual stress Curved steel Roller bending Finite element analyses Plastic deformation |
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