Evaluation Method for Delayed Fracture of Steel Sheet by V-Bending

Delayed fracture property is one of the most important problem for the application of high strength steel sheet to the automotive parts. Conventionally, U-bending specimen has been commonly used for the evaluation of delayed fracture. However, the results, such as time to fracture, of U-bending specimen tends to fluctuate, and there is a possibility that the deformation state does not correspond to press formed automotive parts. In this report, V-bending specimen is proposed for the delayed fracture test. FE-simulation of U- and V-bending showed that V-bending is expected to accurately evaluate the delayed fracture properties of actual automotive parts.

• Record URL:
  https://doi.org/10.11351/jsaeronbun.50.951
• Record URL:
  https://www.jstage.jst.go.jp/article/jsaeronbun/50/3/50_20194369/_pdf
• 
• Record URL:
  https://scholar.google.com/scholar_lookup?title=Evaluation%20Method%20for%20Delayed%20Fracture%20of%20Steel%20Sheet%20by%20V-Bending&author=H.%20Miyake&author=J.%20Tobata&author=S.%20Sumikawa&author=T.%20Shinmiya&author=S.%20Ootsuka&author=Y.%20Yamasaki&author=Y.%20Toji&author=Y.%20Tamai&publication_year=2019
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Miyake, Hiroto
  • Tobata, Junya
  • Sumikawa, Satoshi
  • Shinmiya, Toyohisa
  • Ootsuka, Shinji
  • Yamasaki, Yuji
  • Toji, Yuki
  • Tamai, Yoshikiyo
• Publication Date: 2019-5

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 951-956
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 50
  • Issue Number: 3
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Automotive materials; Bending; Fracture mechanics; Fracture properties; High strength steel; Steel sheets
• Subject Areas: Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 01712123
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jul 22 2019 8:01PM