scholarly journals Numerical modeling for accurate prediction of strain localization in hole expansion of a steel sheet

2019 ◽  
Vol 156-157 ◽  
pp. 107-118 ◽  
Author(s):  
Jeong-Yeon Lee ◽  
Ki-Jung Lee ◽  
Myoung-Gyu Lee ◽  
Toshihiko Kuwabara ◽  
Frédéric Barlat
Keyword(s):  
Numerical Modeling ◽  
Strain Localization ◽  
Steel Sheet ◽  
Accurate Prediction ◽  
Hole Expansion

Anisotropic Plastic Behavior of TRIP 780 Steel Sheet in Hole Expansion Test

2012 ◽  
Vol 504-506 ◽  
pp. 89-94 ◽  
Author(s):  
Sansot Panich ◽  
Vitoon Uthaisangsuk ◽  
Surasak Suranuntchai ◽  
Suwat Jirathearanat
Keyword(s):  
Steel Sheet ◽  
Flow Behavior ◽  
Plastic Anisotropy ◽  
Yield Potential ◽  
Uniaxial Tensile ◽  
Plastic Behavior ◽  
Biaxial Test ◽  
Hole Expansion ◽  
Expansion Test ◽  
Hole Expansion Test

Plastic behavior of advanced high strength steel sheet of grade TRIP780 (Transformation Induced Plasticity) was investigated using three different yield functions, namely, the von Mises’s isotropic, Hill’s anisotropic (Hill’48), and Barlat’s anisotropic (Yld2000-2d) criterion. Uniaxial tensile and balanced biaxial test were conducted for the examined steel in order to characterize flow behavior and plastic anisotropy in different stress states. Additionally, disk compression test was performed for obtaining the balanced r-value. According to the different yield criteria, yield stresses and r-values were calculated for different directions and then compared with experimental data. To verify the modeling accuracy, a hole expansion test was carried out experimentally and numerically by FE simulation. Stress-strain curve from the biaxial test was described using voce and swift hardening models. Punch load and stroke, final hole radius, and strain distribution on specimen surface along the hole circumference and the specimen diameter in rolling and transverse directions were determined and compared with the experimental results. It was found that the simulations applying Yld2000-2d yield function provided an acceptable agreement. Consequently, it is noted that the anisotropic yield potential significantly affects the accuracy of the predicted deformation behavior of sheet metal subjected to hole expanding load.

scholarly journals Mesomechanical numerical modeling of the stress-strain localization and fracture in an aluminum alloy with a composite coating

2014 ◽  
Author(s):  
Ruslan R. Balokhonov ◽  
Eugen A. Schwab ◽  
Varvara A. Romanova ◽  
Aleksandr V. Zinoviev ◽  
Sergey A. Martynov
Keyword(s):  
Numerical Modeling ◽  
Aluminum Alloy ◽  
Composite Coating ◽  
Strain Localization ◽  
Stress Strain

scholarly journals Effect of Anisotropic Yield Functions on the Accuracy of Hole Expansion Simulations for 590 MPa Grade Steel Sheet

2010 ◽  
Vol 96 (9) ◽  
pp. 557-563 ◽  
Author(s):  
Kazuma Hashimoto ◽  
Toshihiko Kuwabara ◽  
Eiji Iizuka ◽  
Jeong-Whan Yoon
Keyword(s):  
Steel Sheet ◽  
Hole Expansion ◽  
Yield Functions ◽  
Grade Steel

scholarly journals Strain Localization and Weakening Processes in Viscously Deforming Rocks: Numerical Modeling Based on Laboratory Torsion Experiments

2019 ◽  
Vol 124 (1) ◽  
pp. 1120-1137 ◽  
Author(s):  
M. J. E. A. Döhmann ◽  
S. Brune ◽  
L. Nardini ◽  
E. Rybacki ◽  
G. Dresen
Keyword(s):  
Numerical Modeling ◽  
Strain Localization

Hole expansion of advanced high strenth steel sheet sample

2010 ◽  
Vol 3 (S1) ◽  
pp. 247-250 ◽  
Author(s):  
L. Xu ◽  
L. Chen ◽  
B. C. De Cooman ◽  
D. Steglich ◽  
F. Barlat
Keyword(s):  
Steel Sheet ◽  
Hole Expansion ◽  
Sheet Sample

scholarly journals Controls on Asymmetric Rift Dynamics: Numerical Modeling of Strain Localization and Fault Evolution in the Kenya Rift

Tectonics ◽  
2021 ◽  
Author(s):  
Maximilian J. E. A. Richter ◽  
Sascha Brune ◽  
Simon Riedl ◽  
Anne Glerum ◽  
Derek Neuharth ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Strain Localization ◽  
Kenya Rift ◽  
Fault Evolution
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