RESIDUAL STRAINS SURROUNDING SPLIT-SLEEVE COLD EXPANDED HOLES IN 7075-T651 ALUMINUM

被引：22

作者：

LINK, RE

SANFORD, RJ

机构：

[1] David Taylor Research Center, Annapolis, MD

[2] University of Maryland, College Park, MD

[3] Fatigue and Fracture Branch, Annapolis, MD

[4] Department of Mechanical Engineering, College Park, MD

来源：

JOURNAL OF AIRCRAFT | 1990年 / 27卷 / 07期

关键词：

D O I：

10.2514/3.25328

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Measurements of the residual displacement fields surrounding cold expanded holes were made by using several optical techniques for experimental strain analysis. The residual strain fields were computed from the displacement field data for two levels of cold expansion. The experimentally determined results were compared with theoretical predictions of the displacement and strain fields. The results show that the presently available theories do not accurately predict the residual strains. This may be due, in part, to the three-dimensional nature of the split-sleeve cold expansion process. Finally, the results of this investigation are compared with the results of another investigator. © 1988 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

引用

页码：599 / 604

页数：6

共 21 条

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