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Title: A Modified Split Sleeve For The Cold Expansion Process And Application To 7085 Plate

Abstract

In this work, the split sleeve cold expansion process is studied numerically and experimentally. The finite element (FE) simulations show that a strain concentration occurs in the material near the sleeve split. The results are not very sensitive to macroscopic plastic anisotropy. The maximum strain produced during this process is influenced more by the sleeve geometry than by the material properties. It is also shown numerically that a different sleeve design can reduce the strain concentration drastically. Therefore, this sleeve design is investigated experimentally on a 7085-T7651 aerospace aluminum alloy plate. Although the new design is not optimized, experimental evidence shows that it can significantly reduce cracking near a sleeve split.

Authors:
 [1];  [2];  [3]
  1. Alloy Technology and Materials Research Division, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA 15069-0001 (United States)
  2. Process Mechanics Division, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA 15069-0001 (United States)
  3. Product Manufacturing Division, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA 15069-0001 (United States)
Publication Date:
OSTI Identifier:
21057031
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729536; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; ANISOTROPY; COMPUTERIZED SIMULATION; CRACKS; DESIGN; FATIGUE; FINITE ELEMENT METHOD; PLASTICITY; PLATES; STRAINS

Citation Formats

Barlat, F., Karabin, M. E., and Schultz, R. W.. A Modified Split Sleeve For The Cold Expansion Process And Application To 7085 Plate. United States: N. p., 2007. Web. doi:10.1063/1.2729536.
Barlat, F., Karabin, M. E., & Schultz, R. W.. A Modified Split Sleeve For The Cold Expansion Process And Application To 7085 Plate. United States. doi:10.1063/1.2729536.
Barlat, F., Karabin, M. E., and Schultz, R. W.. Sat . "A Modified Split Sleeve For The Cold Expansion Process And Application To 7085 Plate". United States. doi:10.1063/1.2729536.
@article{osti_21057031,
title = {A Modified Split Sleeve For The Cold Expansion Process And Application To 7085 Plate},
author = {Barlat, F. and Karabin, M. E. and Schultz, R. W.},
abstractNote = {In this work, the split sleeve cold expansion process is studied numerically and experimentally. The finite element (FE) simulations show that a strain concentration occurs in the material near the sleeve split. The results are not very sensitive to macroscopic plastic anisotropy. The maximum strain produced during this process is influenced more by the sleeve geometry than by the material properties. It is also shown numerically that a different sleeve design can reduce the strain concentration drastically. Therefore, this sleeve design is investigated experimentally on a 7085-T7651 aerospace aluminum alloy plate. Although the new design is not optimized, experimental evidence shows that it can significantly reduce cracking near a sleeve split.},
doi = {10.1063/1.2729536},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}
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