Transactions of Society of Automotive Engineers of Japan
Online ISSN : 1883-0811
Print ISSN : 0287-8321
ISSN-L : 0287-8321
Research Paper
Study of Crack Propagation of Ductile Fracture for High Strength Steels
Riki Takeda, Erika Noguchi, Jun Iyama, Toshihiro Araki, Kentaro Sato, Takayuki Futatsuka, Jiro Hiramoto
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Keywords: Materials, Crack Propagation, High Strength Steels, Crash Simulation, FEM Analysis
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2016 Volume 47 Issue 6 Pages 1459-1464

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Abstract
The purpose of this study is to visualize strain and crack propagation in high strength steels (TS: 590MPa, 980MPa). A new, simple test for crack propagation has been defined in which strain ratio is measured by multi-camera digital image and FEM analysis. The study shows that the direction of crack propagation changes with material and shape. The crack area predicted by FEM has been validated by simple physical test results.
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© 2016 Society of Automotive Engineers of Japan, Inc.
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