環状切欠き部の組合せ応力集中係数と塑性拘束係数について

概要

論文の詳細を見る
On the case of two or three dimensional stress concentration, evaluation of notch sharpness are represented by combined stress concentration factor (α') and plastic constraint factor (L) other than by stress concentration factor (α). However, very few data about combined stress concentration factor (α') and plastic constraint factor (L) are found, although abundant data of stress concentration factor (α). Therefore, it has apparently not been published reports of discussing notch effects for combined stress concentration factor (α') and plastic constraint factor (L). This report refers to our proposition of stress analyze on various shapes of circular notch which are axially loaded. Stress concentration factor (α), combined stress concentration factor (α') and constraint factor (L) have been caluclated by means of finite-element analysis programs and provided the informal equation to estimate rough value of combined stress concentration factor (α') and plastic constraint factor (L) from stress concentration factor (α) on relation of them. For instance, estimation of impact tensile strength for circular notched specimen were expressed by a , a' and L, and our trial was apprasied for evaluation of notch effects.
秋田工業高等専門学校の論文
2004-02-28