抄録
This paper presents a phenomenological model of ductile fracture for the API X65 steel using the Gurson-Tvergaard-Needleman (GTN) model. Experimental tests and FE damage simulations using the GTN model are performed for smooth and notched tensile bars, from which the parameters in the GTN model are calibrated. Comparison of experimental data of pre-strained, notched tensile and fracture toughness tests with finite element (FE) damage analyses show good agreements, suggesting the validity of the calibrated parameters. As application, the developed GTN model is applied to predict the pre-strain effect on deformation and fracture and the results are compared with experimental data.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 1399-1412 |
| ページ数 | 14 |
| ジャーナル | International Journal of Mechanical Sciences |
| 巻 | 49 |
| 号 | 12 |
| DOI | |
| 出版ステータス | Published - 2007 12月 1 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 土木構造工学
- 材料科学（全般）
- 凝縮系物理学
- 材料力学
- 機械工学