Abstract
In this study, the bending formability of multilayered steel sheets is evaluated by tensile tests, V-bending tests, and hemming tests. Enhanced formability was observed in these experiments, namely, the constituent high-strength materials were elongated beyond the original fracture strain limit. As a result of this effect, multilayered steel sheets were successfully formed in V-bending tests and even in hemming tests. Observations using a scanning electron microscope verified that no delamination occurred at interfaces. To represent the geometrical features of a multilayered steel sheet, a solid-element model under an isostrain condition was utilized in finite element modeling, where the rule of mixtures was adopted to obtain the flow curve of the constituent high-strength material, and a good agreement with experimental results was observed. Analyses using this finite element model were conducted to investigate the effect of the geometry on the springback of multilayered steel sheets undergoing V-bending.
| Original language | English |
|---|---|
| Pages (from-to) | 1926-1933 |
| Number of pages | 8 |
| Journal | Journal of Materials Processing Technology |
| Volume | 210 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2010 Nov 1 |
| Externally published | Yes |
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Keywords
- Bending formability
- Finite element analysis
- Multilayered steel sheet
- Springback
ASJC Scopus subject areas
- Computer Science Applications
- Modelling and Simulation
- Ceramics and Composites
- Metals and Alloys
- Industrial and Manufacturing Engineering
Cite this
Experimental and numerical analysis of multilayered steel sheets upon bending. / Oya, Tetsuo; Tiesler, Nicolas; Kawanishi, Seiichiro; Yanagimoto, Jun; Koseki, Toshihiko.
In: Journal of Materials Processing Technology, Vol. 210, No. 14, 01.11.2010, p. 1926-1933.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental and numerical analysis of multilayered steel sheets upon bending
AU - Oya, Tetsuo
AU - Tiesler, Nicolas
AU - Kawanishi, Seiichiro
AU - Yanagimoto, Jun
AU - Koseki, Toshihiko
PY - 2010/11/1
Y1 - 2010/11/1
N2 - In this study, the bending formability of multilayered steel sheets is evaluated by tensile tests, V-bending tests, and hemming tests. Enhanced formability was observed in these experiments, namely, the constituent high-strength materials were elongated beyond the original fracture strain limit. As a result of this effect, multilayered steel sheets were successfully formed in V-bending tests and even in hemming tests. Observations using a scanning electron microscope verified that no delamination occurred at interfaces. To represent the geometrical features of a multilayered steel sheet, a solid-element model under an isostrain condition was utilized in finite element modeling, where the rule of mixtures was adopted to obtain the flow curve of the constituent high-strength material, and a good agreement with experimental results was observed. Analyses using this finite element model were conducted to investigate the effect of the geometry on the springback of multilayered steel sheets undergoing V-bending.
AB - In this study, the bending formability of multilayered steel sheets is evaluated by tensile tests, V-bending tests, and hemming tests. Enhanced formability was observed in these experiments, namely, the constituent high-strength materials were elongated beyond the original fracture strain limit. As a result of this effect, multilayered steel sheets were successfully formed in V-bending tests and even in hemming tests. Observations using a scanning electron microscope verified that no delamination occurred at interfaces. To represent the geometrical features of a multilayered steel sheet, a solid-element model under an isostrain condition was utilized in finite element modeling, where the rule of mixtures was adopted to obtain the flow curve of the constituent high-strength material, and a good agreement with experimental results was observed. Analyses using this finite element model were conducted to investigate the effect of the geometry on the springback of multilayered steel sheets undergoing V-bending.
KW - Bending formability
KW - Finite element analysis
KW - Multilayered steel sheet
KW - Springback
UR - http://www.scopus.com/inward/record.url?scp=77956340424&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956340424&partnerID=8YFLogxK
U2 - 10.1016/j.jmatprotec.2010.07.003
DO - 10.1016/j.jmatprotec.2010.07.003
M3 - Article
AN - SCOPUS:77956340424
VL - 210
SP - 1926
EP - 1933
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
SN - 0924-0136
IS - 14
ER -