CCT試験片の板厚効果に関する研究 : 第1報 CCT試験片の3次元弾塑性解析

概要

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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 J_x and COD along the curved crack front and the J_x 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 J_x along the crack front and the plastic zone profiles. Finally, the availability of J_R value is examined, which is evaluated from the load versus displacement curve by using Rice's formula.
一般社団法人日本機械学会の論文
1985-07-25