Numerical simulations for 3 point ductile metal fracture under projectile collision

• WANG Fangyi

  Graduate School of Maritime Science, Kobe University

• YASUFUKU Hiroki

  Graduate School of Maritime Science, Kobe University

• FUJIMOTO Takehiro

  Kobe University

Bibliographic Information

Other Title

• 衝突下の三点曲げぜい性金属破壊の数値シミュレーション

Abstract

When a material defect (initial crack) exists near high speed collision point, fracture resulting from the initial crack shows complicated crack propagation behavior shows dependency on the condition of the collision. In this research, the collision fracture phenomenon is observed using a high-speed camera, and the experimental results like the geometrical conditions, the start time of crack propagation, the crack propagation direction, and the crack propagation rate are recorded, the numerical simulation to model the crack propagation phenomenon is conducted. Base on the results of the numerical simulation, we examined the stress distribution and transition of fracture mechanics parameters, the application of contact - non-contact condition between specimen and strikers is discussed.

Journal

• The Proceedings of The Computational Mechanics Conference

  The Proceedings of The Computational Mechanics Conference 2019.32 (0), 137-, 2019

  The Japan Society of Mechanical Engineers

Keywords

• initial crack
• high speed collision
• numerical simulation
• projectile collision
• ductile metal

Details

• CRID: 1390846609816672128
• NII Article ID: 130007817224
• DOI: 10.1299/jsmecmd.2019.32.137
• ISSN: 24242799
• Web Site: https://www.jstage.jst.go.jp/article/jsmecmd/2019.32/0/2019.32_137/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed