基于应力应变的楔横轧层合轴分界面结合机理研究

Research on Interface Binding Mechanism of Cross Wedge Rolling Laminated Shaft Based on Stress and Strain

在相同工艺参数下,通过有限元ANSYS/LS-DYNA模拟,得到楔横轧层合轴和单层轴相同位置跟踪点处的最大横向应力、平均应力、最大剪应力和最大剪应变的变化情况。通过对比应力应变,得出了层合轴分界面处的应力应变特点,阐释了层合轴分界面处的结合机理,这能为改善层合轴分界面处的结合质量提供理论依据。

The maximum transverse stress, the average stress, the maximum shear stress and the maximum shear strain of the tracking points on the same position of cross wedge rolling laminated shaft and single shaft were obtained by ANSYS/LS-DYNA finite element simulation with the same rolling process parameters. Through the comparison of stress and strain on the tracking points, the stress and strain characteristics of cross wedge rolling laminated shaft were obtained. And the interface binding mechanism of cross wedge rolling laminated shaft was elaborated. It can provide theoretical basis for improving the interfacing binding quality of laminated shaft.