書誌事項
- タイトル別名
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- A simple method for evaluating the J-integral of an impacted three-point bend specimen.
- ショウゲキ 3テン マゲ シケンヘン ニ オケル J セキブン ノ カンベン
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抄録
The time variation of fracture mechanics parameters may be computed by the finite element method. However, this method requires a large computer time and is not conveniently used in material testing. In a previous paper, the authors derived a simple formula for calculating the dynamic stress intensity factor of an elastic three-point bend specimen subjected to impact loading. In the present paper, the formula is extended to include large scale yielding by introducing a plastic zone correction, and a simple method is proposed for evaluating the J^^-integral, a dynamic fracture mechanics parameter which is an extension of the J-integral and includes the effects of inertia force etc. Numerical examples are presented to demonstrate the practical applicability of the method. It is shown that a reasonable accuracy is obtained by the present method as compared with the elastic/viscoplastic finite element computation; and the CPU-time is within 1% of the finite element method. The limitation of the present method is also discussed.
収録刊行物
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- 日本機械学会論文集A編
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日本機械学会論文集A編 53 (489), 899-904, 1987
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
- 1390001204478849664
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- NII論文ID
- 110002377273
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 3125933
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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
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可