冲孔镀镍钢带拉伸性能的模拟与实验研究

摘要

In this paper,the simulated and experimental methods were applied to study the tensile behavior of nickel-plated punched steel strips.Nonlinear finite element software ABAQUS was used to simulate the tensile behavior of two types of nickel-plated punched steel strips named positive-mold products and negative-mold products which were punched by different ways.The tensile force- displacement curves and mechanical proper-ties were acquired.In order to validate the simulated results,tensile experiments were conducted to obtain the maximum force,tensile strength and elongation.The results indicate that the positive-mold products display better ductility and resistance to deformation than the negative ones.The simulated results are close to the ex-perimental ones so that simulation is proved to be an effective method in predicting the mechanical properties of nickel-plated punched steel strips.In addition,simulated results are helpful in explaining the discrepancies of mechanical properties between the two types of nickel-plated punched steel strips.%采用模拟与实验相结合的方式,研究了冲孔镀镍钢带的拉伸力学行为.模拟部分采用ABAQUS非线性有限元软件,模拟了2种不同冲孔方式的冲孔镀镍钢带即正模具产品和反模具产品的拉伸过程,得到拉伸力-位移曲线和各项力学性能数据.为了验证模拟的可靠性,同时进行了实际的拉伸实验,得到最大拉力、抗拉强度和延伸率数值.结果显示,正模具产品的变形抗力和塑性比反模具产品好,模拟结果与实验结果的各项数值均比较吻合,说明模拟是预测冲孔镀镍钢带力学性能的有效方法.另外,模拟也为2种冲孔镀镍钢带的力学性能差异提供了辅助性的解释.