Fatigue performance of production-quality aircraft fastener holes

被引：33
|
作者：
Ralph, W. Carter [1 ]
Johnson, W. Steven
Makeev, Andrew
Newman, James C., Jr.
机构：
[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
[2] Delta Air Lines, Atlanta, GA USA
[3] Mississippi State Univ, Dept Aerosp Engn, Starkville, MS USA
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2007年 / 29卷 / 07期
关键词：
fastener hole; drilling; hole quality; pilot hole;
D O I：
10.1016/j.ijfatigue.2006.10.016
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A two part study was conducted on the effects of hole drilling on the fatigue life of aircraft rivet holes in 2024-T3 aircraft quality aluminum. The first part of the study determined the drilling parameters that had the greatest effect on hole quality. In this, the second part of the study, the fatigue lives resulting from these drilling parameters are compared. It was found that machining marks play a greater role than residual stress in the fatigue life of production-quality holes. Machine drilling greatly reduces machining marks, increasing fatigue life by almost a factor of three. Dull bits appear to increase residual stress, but also increase machining marks, resulting in an approximately equal overall fatigue life. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1319 / 1327
页数：9
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