赤石 雄一郎
,
干 洋
,
陳 〓
,
王 寰
,
玉崎 英俊
,
野田 尚昭
,
佐野 義一
,
高瀬 康
The bolts and nuts are widely used in various fields as an important joining machine element. It is known that failures usually happen at the root of the first bolt thread where the maximum stress con …