ＣＣＴ試験片の板厚効果に関する研究　Ｉ　　ＣＣＴ試験片の３次元弾塑性解析

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タイトル別名
  • The thickness effects of the CCT specimen. (1st report, Three-dimensional elasto-plastic analyses of CCT specimens)
  • CCT シケンヘン ノ イタアツ コウカ ニ カンスル ケンキュウ 1 CCT

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説明

The three-dimensional elasto-plastic analyses are carried out by using the finite element method for CCT specimens of four kinds of thickness(B=200, 18, 6, 4mm). Inelastic analyses, there is no significant difference between the straight and the curved crack front specimens in the distribution of J-integral along the crack front. In elasto-plastic analyses, the distributions of Jx and COD along the curved crack front and the Jx along the crack front, which is independent of thickness of specimen. But, there is a significant difference between the 4mm thick specimen and the thicker specimens than 4 mm. The thickness effects are discussed from the distributions of Jx along the crack front and the plastic zone profiles. Finally, the availability of JR value is examined, which is evaluated from the load versus displacement curve by using Rice's formula.

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