抄録
Detailed two-dimensional and three-dimensional finite element (FE) analyses of double-edge cracked tension (DE(T)) specimens are carried out to investigate the effect of in-plane and out-of-plane constraint on experimental J testing schemes and crack tip triaxial stresses. FE analyses involve systematic variations of relevant parameters, such as the relative crack depth and plate width-to- thickness ratio. Furthermore, the strain hardening index of the material is systematically varied, including the perfectly plastic (non-hardening) cases. Based on the FE results, a robust experimental J estimation scheme is proposed. It is also found that crack tip constraint states in the DE(T) specimen strongly depend on the relative crack depth, and thus can offer an advantage in investigating constraint effects on toughness. However, the specimen thickness, required to maintain plane strain conditions, is much larger, compared to standard bend type specimens. Detailed results for crack tip stress triaxiality for 3-D DE(T) specimens are given to roughly estimate crack tip constraint in testing DE(T) specimens.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 945-966 |
| ページ数 | 22 |
| ジャーナル | Engineering Fracture Mechanics |
| 巻 | 71 |
| 発行部数 | 7-8 |
| DOI | |
| 出版物ステータス | Published - 2004 1 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
これを引用
Elastic-plastic finite element analysis for double-edge cracked tension (DE(T)) plates. / Kim, Yun Jae; Son, Beom Goo; Kim, Young Jin.
：: Engineering Fracture Mechanics, 巻 71, 番号 7-8, 01.01.2004, p. 945-966.研究成果: Article
}
TY - JOUR
T1 - Elastic-plastic finite element analysis for double-edge cracked tension (DE(T)) plates
AU - Kim, Yun Jae
AU - Son, Beom Goo
AU - Kim, Young Jin
PY - 2004/1/1
Y1 - 2004/1/1
N2 - Detailed two-dimensional and three-dimensional finite element (FE) analyses of double-edge cracked tension (DE(T)) specimens are carried out to investigate the effect of in-plane and out-of-plane constraint on experimental J testing schemes and crack tip triaxial stresses. FE analyses involve systematic variations of relevant parameters, such as the relative crack depth and plate width-to- thickness ratio. Furthermore, the strain hardening index of the material is systematically varied, including the perfectly plastic (non-hardening) cases. Based on the FE results, a robust experimental J estimation scheme is proposed. It is also found that crack tip constraint states in the DE(T) specimen strongly depend on the relative crack depth, and thus can offer an advantage in investigating constraint effects on toughness. However, the specimen thickness, required to maintain plane strain conditions, is much larger, compared to standard bend type specimens. Detailed results for crack tip stress triaxiality for 3-D DE(T) specimens are given to roughly estimate crack tip constraint in testing DE(T) specimens.
AB - Detailed two-dimensional and three-dimensional finite element (FE) analyses of double-edge cracked tension (DE(T)) specimens are carried out to investigate the effect of in-plane and out-of-plane constraint on experimental J testing schemes and crack tip triaxial stresses. FE analyses involve systematic variations of relevant parameters, such as the relative crack depth and plate width-to- thickness ratio. Furthermore, the strain hardening index of the material is systematically varied, including the perfectly plastic (non-hardening) cases. Based on the FE results, a robust experimental J estimation scheme is proposed. It is also found that crack tip constraint states in the DE(T) specimen strongly depend on the relative crack depth, and thus can offer an advantage in investigating constraint effects on toughness. However, the specimen thickness, required to maintain plane strain conditions, is much larger, compared to standard bend type specimens. Detailed results for crack tip stress triaxiality for 3-D DE(T) specimens are given to roughly estimate crack tip constraint in testing DE(T) specimens.
KW - Crack tip constraint
KW - DE(T)
KW - Plastic η factor
KW - Toughness testing
UR - http://www.scopus.com/inward/record.url?scp=0348046518&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0348046518&partnerID=8YFLogxK
U2 - 10.1016/S0013-7944(03)00157-7
DO - 10.1016/S0013-7944(03)00157-7
M3 - Article
AN - SCOPUS:0348046518
VL - 71
SP - 945
EP - 966
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
IS - 7-8
ER -