A Method for Evaluating Stress Triaxiality and Fracture Strain of High Tensile Strength Steel Sheet Using Stereo Image Correlation

2016 ◽  
Vol 2016 (0) ◽  
pp. OS05-01
Author(s):  
Daichi KANAZAWA ◽  
Kuniharu USHIJIMA ◽  
Yuelin ZHANG ◽  
Satoru YONEYAMA ◽  
Junya NAITO ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Steel Sheet ◽  
Fracture Strain ◽  
Stress Triaxiality ◽  
Image Correlation ◽  
Stereo Image ◽  
High Tensile Strength

OS0410 Evaluation of Stress Triaxiality and Fracture Strain of Automotive Steel Sheet Using Digital Image Correlation

2016 ◽  
Vol 2016.22 (0) ◽  
pp. _OS0410-1_-_OS0410-2_
Author(s):  
Daichi KANAZAWA ◽  
Satoru YONEYAMA ◽  
Kuniharu USHIJIMA ◽  
Junya NAITO ◽  
Shota CHINZEI
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Steel Sheet ◽  
Fracture Strain ◽  
Stress Triaxiality ◽  
Image Correlation ◽  
Automotive Steel

Finite Element Analysis of High Tensile Strength Steel Sheet by Using Complex Step Derivative Approximations

2014 ◽  
Vol 626 ◽  
pp. 187-192
Author(s):  
Takeshi Uemori ◽  
Hiroshi Miyake ◽  
Tetsuo Naka ◽  
Michihiro Takiguchi ◽  
Fusahito Yoshida
Keyword(s):  
Finite Element ◽  
Tensile Strength ◽  
Steel Sheet ◽  
Back Stress ◽  
Isotropic Hardening ◽  
High Tensile Strength ◽  
Element Analysis ◽  
Tangent Moduli ◽  
Consistent Tangent Moduli ◽  
Hardening Rules

The framework for the complex step derivative approximations (hereafter CDSA) to calculate the consistent tangent moduli is studied. The present methods is one of the most effective methods to implement any material constitutive equations to the commercial finite element codes and does not suffer from calculation conditions and errors. In order to confirm the efficiency of CDSA, we developed the user subroutine code based on the CDSA using associative J2 flow rules with general nonlinear isotropic hardening rules that is commonly and widely utilized in commercial finite element codes. In this study, the user material subroutine ‘Hypela2’ of MSC.Marc (ver.2013.0.0) was utilized. The finite element calculation result by the proposal method shows a good agreement with the corresponding result by the MSC.Marc default setting. Also we apply the Yoshida-Uemori back stress model to the CDSA and evaluate this new technique to predict the deformation behavior of high tensile strength steel sheet.

439 NEM analysis for fine-blanking process of high-tensile strength steel sheet

2008 ◽  
Vol 2008.21 (0) ◽  
pp. 754-755
Author(s):  
Toru TANAKA ◽  
Shuuhei YOSHIMURA ◽  
Takaki OGAWA ◽  
Yuichi TADANO ◽  
Seiya HAGIHARA
Keyword(s):  
Tensile Strength ◽  
Steel Sheet ◽  
High Tensile Strength ◽  
Fine Blanking ◽  
Blanking Process

Evaluating Stress Triaxiality of High Strength Steel Using Stereo Image Correlation

2018 ◽  
Vol 2018 (0) ◽  
pp. OS0505
Author(s):  
Akino MOCHIZUKI ◽  
Yuelin ZHANG ◽  
Kuniharu USHIJIMA ◽  
Satoru YONEYAMA ◽  
Shota CHINZEI ◽  
...  
Keyword(s):  
High Strength Steel ◽  
Stress Triaxiality ◽  
High Strength ◽  
Image Correlation ◽  
Stereo Image

scholarly journals Effects of Conical Punch Shape and Thickness on Stretch Flangeability of Hot-Rolled High-Tensile-Strength Steel Sheet

2016 ◽  
Vol 57 (660) ◽  
pp. 53-59
Author(s):  
Yasuhiro ITO ◽  
Yoshiaki NAKAZAWA ◽  
Yukihisa KURIYAMA ◽  
Katsuyuki SUZUKI ◽  
Noriyuki SUZUKI
Keyword(s):  
Tensile Strength ◽  
Steel Sheet ◽  
High Tensile Strength ◽  
Hot Rolled ◽  
Punch Shape

scholarly journals Improvement of Formability in Cold Rolling of Hot Band for Over 980 MPa Grade High Tensile Strength Steel Sheet

2014 ◽  
Vol 100 (5) ◽  
pp. 616-624
Author(s):  
Masanori Kobayashi ◽  
Kodai Doi ◽  
Tomofumi Kimura ◽  
Shigeto Koizumi ◽  
Kazuya Kimijima ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cold Rolling ◽  
Steel Sheet ◽  
High Tensile Strength ◽  
Hot Band
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