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FEM Simulation of Large Diameter Pipe Bending Using Local Heating

机译:大直径管道局部加热的有限元模拟

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摘要

With the aid of elastic-plastic large deformation finite element method (FEM), an elastic-plastic and coupling thermo-mechanical model was built to calculate the bending process of the bent pipe, combining with local heating or cooling of the bent pipe. Based on the FEM simulation, the metal deformation during the bending process was analyzed in detail. The thinning and thickening ratio of the pipe wall thickness, the ovality of the cross-section of the pipe and the spring-back angle, etc. , are presented.
机译:借助弹塑性大变形有限元方法(FEM),结合弯管的局部加热或冷却,建立了弹塑性耦合热力学模型来计算弯管的弯曲过程。基于有限元模拟,详细分析了弯曲过程中的金属变形。给出了管壁厚度的变薄和增厚率,管横截面的椭圆度和回弹角等。

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