Numerical and experimental study of strain distribution of trip steel sheet using hydraulic bulge test

被引：1
|
作者：
Spisak, E. [1 ]
Majernikova, J. [1 ]
Slota, J. [2 ]
Kascak, L. [2 ]
机构：
[1] Tech Univ Kosice, Fac Mech Engn, Dept Mech Engn Technol & Mat, Kosice, Slovakia
[2] Tech Univ Kosice, Fac Mech Engn, Dept Comp Support Technol, Kosice, Slovakia
来源：
38TH INTERNATIONAL DEEP DRAWING RESEARCH GROUP ANNUAL CONFERENCE (IDDRG 2019) | 2019年 / 651卷
关键词：
INHOMOGENEOUS PLASTIC-DEFORMATION; FORMABILITY; BEHAVIOR;
D O I：
10.1088/1757-899X/651/1/012090
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents a numerical and experimental study of strain distribution in a spherical cup drawn from TRIP steel RAK 40/70 by hydraulic bulge test. The strain distribution was measured based on the data obtained by coordinate measuring machine (CMM) to identify the wall thickness and plastic anisotropy through measuring the circularity. Numerical modelling of hydraulic bulge test was performed in two types of finite element code - explicit as well as implicit. Hill's family plasticity models with a combination of two types of the hardening curves were used in the simulation model of the bulging process. The FE analysis was compared with the experimental study. The results indicate that the model is applicable to describe the wall thickness, strain distribution and bulged profile.
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页数：8
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