FEM modeling of crack propagation in a model multiphase alloy

Lihe Qian, Seishi Nishido, Hiroyuki Toda, Toshiro Kobayashi

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

In this paper, several widely applied fracture criteria were first numerically examined and the crack-tip-region J-integral criterion was confirmed to be more applicable to predict fracture angle in an elastic-plastic multiphase material. Then, the crack propagation in an idealized dendritic two-phase Al-7%Si alloy was modeled using an elastic-plastic finite element method. The variation of crack growth driving force with crack extension was also demonstrated. It is found that the crack path is significantly influenced by the presence of α-phase near the crack tip, and the crack growth driving force varies drastically from place to place. Lastly, the simulated fracture path in the two-phase model alloy was compared with the experimentally observed fracture path.

本文言語英語
ページ(範囲)59-65
ページ数7
ジャーナルJournal of Materials Science and Technology
22
1
出版ステータス出版済み - 1月 1 2006
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 材料力学
  • 機械工学
  • ポリマーおよびプラスチック
  • 金属および合金
  • 材料化学

フィンガープリント

「FEM modeling of crack propagation in a model multiphase alloy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル