Comparison of fracture strain based ductile failure simulation with experimental results

Nak Hyun Kim, Chang Sik Oh, Yun Jae Kim, Kee Bong Yoon, Young Hwa Ma

研究成果: Article査読

77 被引用数 (Scopus)

抄録

This paper provides experimental validation of the approach for simulating ductile failure using finite element methods, recently proposed by the authors. The proposed method is based on a phenomenological stress-modified fracture strain model. Incremental damage is defined by the ratio of the plastic strain increment to the fracture strain, and total damage is calculated using linear summation. When the accumulated damage becomes unity, all stress components at the finite element gauss point are reduced to a small value to simulate progressive failure. The proposed method is validated against four experimental data sets of cracked specimens made of three different materials. Despite the simplicity of the proposed method, the simulated results agree well with experimental data for all cases considered, providing sufficient confidence in the use of the proposed method to simulate ductile failure.

本文言語English
ページ(範囲)434-447
ページ数14
ジャーナルInternational Journal of Pressure Vessels and Piping
88
10
DOI
出版ステータスPublished - 2011 10月
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

フィンガープリント

「Comparison of fracture strain based ductile failure simulation with experimental results」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