This article mainly introduced a high-temperature static Poisson's ratio test method using mechanical axial and transverse extensometers through axial tension.Compared to traditional high-temperature static Poisson's ratio measurement methods,the proposed method had the advantages of more convenient,low-cost,and intuitive displacement measurement.The static Poisson's ratio tests of various materials were conducted at room and high temperatures.Moreover,the data were compared with dynamic Poisson's ratio data under the same conditions.The results showed that for GH49,316L,GH4720Li,and K6509 materials,there is a certain numerical difference between high-temperature dynamic Poisson's ratio and static Poisson's ratio,and even under temperature changes,the trend of change does not show correlation.
关键词
轴向拉伸法/高温静态泊松比/高温动态泊松比
Key words
axial stretching method/static Poisson's ratio at elevated temperature/dynamic Poisson's ratio at elevated tem-perature
维普
万方数据