鼓胀试验在管材力学性能测试中的研究进展

摘要

压力管道作为一种重要的流质输送媒介，被广泛应用于现代工业的各个领域。鼓胀试验是一种用于直接测定管材力学性能的方法，通过测量鼓胀试验中管材的壁厚、胀形高度以及内部压力等过程参数并将其代入分析模型，可以得到管材的性能指标。鼓胀试验具有独特的成形特点，能比单向拉伸试验更精准地评估管材的力学性能。%As an important liquid transport medium,pressure tube is widely used in various fields of modern industry.The bulge test is a method used directly to determine the mechanical properties of tubular material,the process parameters such as the wall thickness of tube,the height of the bulge and the internal pressure are measured during the bulge test,and the perform-ance of the tube can be obtained as soon as the parameters are substituted into the analytical mod-el.It can be more accurate than the uniaxial tensile test to establish the tubular mechanical prop-erties due to peculiar forming characteristics of the bulge test.