Numerical model of brittle crack propagation considering fracture surface energy on high tensile strength steel - Proposal of a numerical model of brittle crack propagation (report 1)

Brittle fracture propagation issue has been focused from the viewpoint of margin of safety in some steel structures which require high fracture safety. In this study, importance of absorption of fracture surface energy (Gc) during cleavage crack propagation in poly-crystal material is pointed out. Model experiments at -196 degree C by compact crack arrest specimen and finite element method (FEM) analyses based on the local stress criterion method were performed using YP32 steel and its material constant considering Gc concept. FEM analyses where the critical stress, σf is set to 2150MPa which is the same value as its critical stress for crack initiation and Gc is set to be 500J/m² show excellent agreement with experiment in their crack propagation velocity and arrested location.

• Record URL:
  https://doi.org/10.2534/jjasnaoe.16.77
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Numerical+model+of+brittle+crack+propagation+considering+fracture+surface+energy+on+high+tensile+strength+steel+-+Proposal+of+a+numerical+model+of+brittle+crack+propagation+(report+1)&author=T.+Kawabata&author=A.+Inami&author=S.+Aihara&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18803717
• Authors:
  • Kawabata, Tomoya
  • Inami, Akinori
  • Aihara, Shuji
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: pp 77-87
• Serial:
  • Journal of the Japan Society of Naval Architects and Ocean Engineers
  • Volume: 16
  • Issue Number: 0
  • Publisher: Japan Society of Naval Architects and Ocean Engineers
  • ISSN: 1880-3717
  • EISSN: 1881-1760
  • Serial URL: https://www.jstage.jst.go.jp/browse/jjasnaoe/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Finite element method; Fracture mechanics; High strength steel; Mathematical models; Numerical analysis; Steel structures; Tensile strength
• Subject Areas: Marine Transportation; Materials; I20: Design and Planning of Transport Infrastructure; I34: Steels and Metals;

Filing Info

• Accession Number: 01505658
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 27 2014 11:27AM