ぜい性き裂伝ぱ過程および停止時の応力拡大係数(<小特集>X線材料強度小特集)

概要

論文の詳細を見る
Quantitative evaluation of stress intensity factors during brittle crack propagation and at crack arrest was made by applying the X-ray diffraction technique to the fracture surface of compact :specimens of a pressure vessel steel SA533B Cl. 1. The stress intensity factor determined using the half value breadth of the X-ray diffraction intensity curve from the fracture surface decreased gradually as the crack propagated, and then it oscillated before arrest. The stress intensity factor at crack arrest was not necessarily the minimum value obtained during the crack propagation. The stress intensity factor at crack arrest was in good agreement with the crack arrest toughness K_<Ia>. determined by the static analysis, while it was smaller than K_<ID> by the dynamic one.
社団法人日本材料学会の論文
1981-03-15