種々の軸方向き裂を有する円筒の応力拡大係数 : マトリクス表記を用いた統一的解析手法の提案

概要

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In this paper, a simple procedure based on the matrix method of structural analysis is proposed to estimate the stress intensity factors for various configurations of axially cracked cylinders. General formulation using matrix expression is presented at first. Then, this formulation is reformed by using the hoop stress in the uncracked configuration for the convenience of numerical ca1culations and analytical considerations. Proposed method enables us to estimate not only the mixed-mode stress intensity factors but also the J-integral for quite various configurations of axially cracked cylinders, and obtained results show good agreement with numerical data in the literature for a number of cracked configurations. In addition, explicit formulation in this study enables us to easily know the characteristic features of axially cracked cylinders ; the dependence of internal forces and K-values on mean radius, wall thickness, crack length, and the number of cracks.
一般社団法人日本機械学会の論文
1991-07-25