書誌事項
- タイトル別名
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- A new three-dimensional J-integral formulation for arbitrary load history and finite deformation
説明
<p>In this paper, a new formulation of three-dimensional J-integral for the evaluation of elastic-plastic fracture problem is presented. It is known that the J-integral represents the energy release rate per unit crack extension. The J-integral is a path-independent integral and can be computed on arbitrary integral path or domain. This property requires the assumption of proportional loading when an elastic-plastic material is considered. Because of this assumption, J-integral loses path-independent property under a non-proportional loading condition. We present a new formulation of three-dimensional J-integral representing the energy dissipation inside a small but finite domain in the vicinity of crack front. The dissipated energy includes the energy released by crack extension and the deformation energy that dissipates in the process zone. This formulation is the extension of the three-dimensional J-integral using equivalent domain integral method and derived without any assumptions on the deformation history. Therefore, it is possible to evaluate the J-integral for problems subject to any load histories. Finally, the problems of hyperelastic and large deformation cyclic elastic-plastic analysis using finite element method are presented. They show that the proposed method can be applied to non-proportional loading problem.</p>
収録刊行物
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- 日本機械学会論文集
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日本機械学会論文集 84 (863), 18-00115-18-00115, 2018
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001288047772544
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- NII論文ID
- 130007419044
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- ISSN
- 21879761
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
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- CiNii Articles
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可