航空学报 > 1990, Vol. 11 Issue (7): 369-375

喷丸产生的残余拉应力场及材料的内部疲劳极限

李金魁1, 李海涛1, 姚枚1, 王仁智2   

  1. 1. 哈尔滨工业大学;2. 北京航空材料研究所
  • 收稿日期:1989-09-28 修回日期:1900-01-01 出版日期:1990-07-25 发布日期:1990-07-25

INVESTIGATION ON THE TENSILE RESIDUAL STRESS DUE TO SHOT PEENING AND THE INTERNAL FATIGUE LIMIT OF MATERIALS

Li Jinkui1, Li Haitao1, Sao Mei1, Wang Renzhi2   

  1. 1. Harbin University of Technology;2. Institute of Aeronautical Materials, Beijing
  • Received:1989-09-28 Revised:1900-01-01 Online:1990-07-25 Published:1990-07-25

摘要: 本文采用大型弹塑性分析有限元程序ADINA-84计算了40Cr钢9种规范的喷丸残余应力场,获得了残余拉应力场的计算表达式,并根据疲劳试验结果,提出了内部疲劳极限概念及喷丸强化的内部疲劳极限理论。

关键词: 喷丸强化, 残余应力, 疲劳强度

Abstract: The residual stress field due to shot peening for 9 kinds of shot peening regime of 40Cr steel was calculated using the finite element program ADINA-84 of elastic-plastic analysis. The formula for caculating the tensile residual stress field was obtained. According to the fatigue test results, the concept of IFL due to shot peening were established.

Key words: shot peening, residual stress, fatigue strength