書誌事項
- タイトル別名
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- Numerical model of brittle crack propagation considering fracture surface energy on high tensile strength steel
- ハメン セイセイ エネルギー オ コウリョ シタ コウチョウリョクコウ ノ ゼイセイ キレツデンパスウチ モデル : ゼイセイ キレツデンパスウチ モデル ノ コウチク(ダイ1ポウ)
- - Proposal of a numerical model of brittle crack propagation (report 1) -
- －脆性き裂伝ぱ数値モデルの構築 第１報－
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抄録
Brittle fracture propagation issue has been focused from the viewpoint of margin of safety in some steel structures which require high fracture safety. In this study, Importance of absorption of fracture surface energy(Gc) during cleavage crack propagation in poly-crystal material is pointed out. Model experiment at -196 deg.C by Compact Crack Arrest specimen and FEM analyses based on the local stress criterion method were performed using YP32 steel and its material constant considering Gc concept. FEM analyses where the critical stress, σf is set to 2150MPa which is the same value as its critical stress for crack initiation and Gc is set to be 500J/m2 show excellent agreement with experiment in their crack propagation velocity and arrested location.
収録刊行物
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- 日本船舶海洋工学会論文集
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日本船舶海洋工学会論文集 16 (0), 77-87, 2012
公益社団法人 日本船舶海洋工学会
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詳細情報 詳細情報について
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- CRID
- 1390001205254758784
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- NII論文ID
- 10031139230
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- NII書誌ID
- AA12057769
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- ISSN
- 18811760
- 18803717
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- NDL書誌ID
- 024270193
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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