STRAIN MEASUREMENTS IN FREE TUBE HYDROFORMING PROCESS

被引：5
作者：
Sadlowska, H. [1 ]
Morawinski, L. [1 ]
Jasinski, C. [1 ]
机构：
[1] Warsaw Univ Technol, 85 Narbutta Str, PL-02524 Warsaw, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2020年 / 65卷 / 01期
关键词：
strain measurement; hydroforming; stereovision; TUBULAR MATERIALS; IDENTIFICATION; PARAMETERS; INITIATION; NECKING;
D O I：
10.24425/amm.2020.131725
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The paper presents a method of measuring deformations of cylindrical samples on the testing machine for free tube hydroforming experiments. During experiments a sample made of a thin-walled metal tube is expanded by the internal pressure of the working liquid and additionally subjected to axial compression. This results in a considerable circumferential deformation of the tube and its shortening. Analysis of the load cases and their impact on the deformations can be helpful in determining e.g. tube material properties or general limiting conditions in the tube hydroforming process. In connection with the above, the value of deformations and knowledge of their course during experiment has become one of the most important problems related to the issue described above.
引用
收藏
页码：257 / 263
页数：7
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