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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
International Journal of Mechanical Sciences
Article . 2015 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Damage evaluation in tube spinnability test with ductile fracture criteria

Authors: Hao Ma; Wenchen Xu; Bo Cheng Jin; Debin Shan; Steven R. Nutt;

Damage evaluation in tube spinnability test with ductile fracture criteria

Abstract

Abstract Spinnability, the maximum thickness reduction ratio a material can undergo without fracture, has important effects on product quality and production efficiency in tube spinning. However, predicting the rupture limit and spinnability poses challenges due to the complexity of tube spinning process. This study aims to select appropriate ductile fracture criteria (DFCs) in terms of the damage limits, which were obtained by mechanical tests, to accurately predict the forming limit and damage evolution in the tube spinnability test. The periodic stress triaxiality and periodic Lode parameter were firstly introduced by considering the periodical changes of the stress and strain components in the spinning process. Based on the evolution of the two parameters, the out layer of TA2 titanium tube exhibited a higher damage potential, which was consistent with the experiment results. Nine ductile fracture criteria were incorporated into the finite element software (ABAQUS) to simulate the damage evolution in tube spinnability tests. The results show that, except for the Freudenthal, R–T and Ayada models, all of the other ductile fracture criteria are suitable for predicting the damage distribution on TA2 titanium tubes in spinnability tests. The variation of stress triaxiality under different cut-off values in tensile test were much closer to that in spinnability test relative to upsetting test throughout the entire forming process, which led to higher prediction accuracy of the spinnability by the tensile test. For all of the DFCs considered, the C–L criterion provides the most accurate predictions on the spinnability of TA2 titanium tubes.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
56
Top 10%
Top 10%
Top 10%
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