再生核质点法模拟切分轧制过程

Splitting rolling simulation by reproducing kernel particle method

为保证大变形弹塑性分析的稳定性,采用随材料变形的拉格朗日物质形函数分析了整个切分轧制过程。在整个变形过程中,物质核函数的影响域包含相同的节点数,通过坐标转换方法满足本质边界条件。求解了切分轧制极端变形过程,研究了不同切分楔夹角和轧件宽度对切分后轧件弯曲度的影响,数值模拟结果与实验数据吻合良好。

In order to assure the stability of the large deformation elastoplastic analysis, the Lagrangre material shape function deformed with material was used to analyze the splitting rolling process. And during the whole deformation process, the domain of the material kernel function includes similar nodes number. The transformation method is utilized to satisfy the essential boundary conditions. The splitting rolling is simulated, and the effects of different wedge angular and slab width on the split workpiece camber were studied. The simulation results accord well with the experiment ones in the literature.