Anisotropic Damage Constitutive Law for Cleavage Failure in Crystalline Grain by Cohesive Zone Model
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- Shintaku Yuichi
- Department of Engineering, Information and Systems, University of Tsukuba
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- Terada Kenjiro
- International Research Institute of Disaster Science, Tohoku University
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- Tsutsumi Seiichiro
- Jointing and Welding Research Institute, Osaka University
書誌事項
- タイトル別名
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- Quarterly journal of the Japan welding society
抄録
The objective of this study is to propose new anisotropic damage constitutive law that represents the separation process on cleavage plane in a polycrystalline aggregate. The proposed law is formulated by embedding of an exponential type of the cohesive zone model (CZM) in a standard crystal plasticity constitutive law. The separation of the cleavage plane can be realized by exponential type of the CZM based on an atomic potential. On the other hands, the crystal plasticity constitutive law is used to simulate the deformation due to the crystalline slip on each crystallographic system. Thus, the proposed damage constitutive law is capable of representing the microscopic mechanism characterized by both the fracture behavior of the cleavage plane and the plastic deformation of the crystallographic slip. Several numerical simulations are conducted to demonstrate the capability of the proposed damage constitutive law. In particular, it is confirmed that the proposed model enables us to simulate the crack propagation in arbitrary directions, and the resultant anisotropic strength in a single crystal grain.
収録刊行物
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- 溶接学会論文集
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溶接学会論文集 35 (2), 165s-168s, 2017
一般社団法人 溶接学会
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キーワード
詳細情報
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- CRID
- 1390001204727352704
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- NII論文ID
- 130006329351
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- ISSN
- 24348252
- 02884771
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可