Next Article in Journal
Effect of Oxidation Temperature on the Oxidation Process of Silicon-Containing Steel
Next Article in Special Issue
Synthesis and Characterization of Nanocrystalline Al-20 at. % Cu Powders Produced by Mechanical Alloying
Previous Article in Journal
Influence of the Overlapping Factor and Welding Speed on T-Joint Welding of Ti6Al4V and Inconel 600 Using Low-Power Fiber Laser
Previous Article in Special Issue
Effect of Friction Stir Welding Parameters on the Mechanical and Microstructure Properties of the Al-Cu Butt Joint
Article Menu

Export Article

Open AccessArticle
Metals 2016, 6(6), 136; doi:10.3390/met6060136

Evaluating the Applicability of GTN Damage Model in Forward Tube Spinning of Aluminum Alloy

State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
*
Author to whom correspondence should be addressed.
Academic Editor: Nong Gao
Received: 20 March 2016 / Revised: 20 May 2016 / Accepted: 1 June 2016 / Published: 6 June 2016
(This article belongs to the Special Issue Aluminum Alloys)
View Full-Text   |   Download PDF [4417 KB, uploaded 6 June 2016]   |  

Abstract

Tube spinning is an effective plastic-forming technology for forming light-weight, high-precision and high-reliability components in high-tech fields, such as aviation and aerospace. However, cracks commonly occur in tube spinning due to the complexity of stress state, which severely restricts the improvement of the forming quality and forming limit of components. In this study, a finite element (FE) model coupled with Gurson-Tvergaard-Needleman (GTN) damage model for forward tube spinning of 3A21-O aluminum alloy is established and its applicability is evaluated by experiment. Meanwhile, the GTN damage model is employed to study the damage evolution for forward tube spinning of 3A21-O aluminum alloy. The results show that the FE model is appropriate for predicting the macroscopic crack appearing in uplift area for forward tube spinning, while the damage evolution in deformation area could not be predicted well due to the negative stress triaxiality and the neglect of shear deformation. Accumulation of damage in forward tube spinning occurs mainly in the uplift area. Void volume fraction (VVF) in the outer surface of the tube is higher than that in the inner surface. In addition, it is prone to cracking in the outer surface of tube in the material uplift area. View Full-Text
Keywords: forward tube spinning; 3A21-O aluminum alloy; Gurson-Tvergaard-Needleman (GTN) damage model; finite element (FE) model; crack forward tube spinning; 3A21-O aluminum alloy; Gurson-Tvergaard-Needleman (GTN) damage model; finite element (FE) model; crack
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, X.; Zhan, M.; Guo, J.; Zhao, B. Evaluating the Applicability of GTN Damage Model in Forward Tube Spinning of Aluminum Alloy. Metals 2016, 6, 136.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top