为了得到管材液压成型的高级数值模拟的准确的材料数据,建议采用管材膨胀试验。为了计算管材的应力和应变,提出了多个解决方法。对其中一种方法分析了利和弊。半分析模型和对管材的试验措施可以显示管材沿直线方向的厚度。通过观测值调整的线性敏感性分析的过程,证实了影响硬化曲线准确的最重要的参数,并给相关试验提供了参考。 In order to obtain accurate material data for advanced numerical simulation of hydroforming tubes, it is recommended to use tube expansion test. In order to calculate the stress and strain of the pipe, a number of solutions have been proposed. One of the ways to analyze the pros and cons. Semi-analytical models and tests on pipes show the thickness of the pipe in a straight line. Through the process of linear sensitivity analysis adjusted by observations, the most important parameters that affect the accuracy of the hardening curve were confirmed and the relevant experiments were provided.