航空学报 > 1989, Vol. 10 Issue (12): 662-665

铆接干涉配合紧固件孔的弹塑性分析及其在疲劳寿命估算中的应用

吴森   

  1. 南京航空学院
  • 收稿日期:1988-04-14 修回日期:1900-01-01 出版日期:1989-12-25 发布日期:1989-12-25

ELASTIC-PLASTIC ANALYSES OF FASTENER HOLES OF INTERFERENCE-FIT RIVETS AND ITS APPLICATION IN FATIGUE LIFE ESTIMATION

Wu shen   

  1. Nanjing Aeronautical Institute
  • Received:1988-04-14 Revised:1900-01-01 Online:1989-12-25 Published:1989-12-25

摘要:

1.铆接干涉配合紧固件孔的弹塑性应力分析 (1)应力分析模型 图1表示铆接干涉配合紧固件结构的示意图,本问题的分析按平面应变情况处理。为了分析的简化,设蒙皮和加筋条材料均相同。假设蒙皮和加筋条均为理想的弹塑性材料,则本问题可按轴对称变形的厚壁筒(外径为无限大)概念进行分析。

关键词: 紧固件, 干涉配合, 弹塑性分析, 疲劳寿命

Abstract:

Fastener holes of interference-fit rivets for perfect elastic-plastic materials is analyzed. The equations of elastic limit interferential quantity, the radius of plastic zone, the radial stress and circumferential stress within elastic and plastic zone etc. arc derived. The fatigue life estimation of an example specimen is comparatively in good agreement with the test results.

Key words: fastener, interference-fit, elastic-plastic analysis, fatigue life