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Simulation of bulk metal forming processes using the reproducing kernel particle method

机译:使用再生核粒子法模拟块状金属成形过程

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A new approach based on the utilization of the reproducing kernel particle method is put forwards for the numerical simulation of bulk metal forming processes. The approach is based on the utilization of the reproducing kernel particle method in conjunction with the flow formulation for slightly compressible rigid-plastic materials. The effectiveness of the proposed methodology is discussed by comparing theoretical predictions with finite element calculations and experimental data. The later were obtained by means of simple metal forming experiments that were performed under laboratory-controlled conditions using aluminium Al6060 (natural aged). The overall comparisons comprise a wide range of topics such as material flow, geometry, forming load, strain and stress distributions. As results show, the proposed approach is capable of efficiently handling large plastic deformations without the need of remeshing procedures and providing results that are in close agreement with both finite element predictions and experimental measurements.
机译:提出了一种基于再生核粒子法的新方法,用于块体金属成形过程的数值模拟。该方法基于可再生内核粒子方法的结合,以及可轻微压缩的硬质塑料材料的流动配方。通过将理论预测与有限元计算和实验数据进行比较,讨论了所提出方法的有效性。后者是通过简单的金属成型实验获得的,该实验是在实验室控制的条件下使用铝Al6060(自然时效)进行的。总体比较包括广泛的主题,例如材料流动,几何形状,成形载荷,应变和应力分布。结果表明,所提出的方法能够有效地处理较大的塑性变形,而无需重新设计程序,并提供与有限元预测和实验测量结果非常一致的结果。

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