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Stress-based predictions of formability and failure in incremental sheet forming

Haque,M and Yoon,J 2014, Stress-based predictions of formability and failure in incremental sheet forming, in NUMISHEET 2014 : Proceedings of the 9th International Conference and Workshop on Numerical Simulation 3D Sheet Metal Forming Processes, AIP Publishing, Melville, N.Y., pp. 816-819, doi: 10.1063/1.4850095.

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Title Stress-based predictions of formability and failure in incremental sheet forming
Author(s) Haque,M
Yoon,JORCID iD for Yoon,J orcid.org/0000-0002-7616-5253
Conference name Numerical Simulation 3D Sheet Metal Forming Processes. Conference and Workshop (9th : 2014 : Melbourne, Victoria)
Conference location Melbourne, Vic.
Conference dates 2014/1/6 - 2014/1/10
Title of proceedings NUMISHEET 2014 : Proceedings of the 9th International Conference and Workshop on Numerical Simulation 3D Sheet Metal Forming Processes
Editor(s) Yoon,J
Rolfe,B
Beynon,J
Hodgson,P
Publication date 2014
Conference series Numerical Simulation 3D Sheet Metal Forming Processes Conference and Workshop
Start page 816
End page 819
Total pages 4
Publisher AIP Publishing
Place of publication Melville, N.Y.
Summary  This research investigates the deformation mechanism in incremental sheet forming (ISF) with relation to necking and failure. A strain-based forming limit criterion is widely used in sheet-metal forming industry to predict necking. However, this criterion is strictly valid only when the strain path is linear throughout the deformation process. Where the strain path in ISF is often found to be severely nonlinear throughout the deformation history. Therefore, the practice of using a strain-based forming limit criterion often leads to erroneous assessments of formability and failure prediction. On the other hands, stress-based forming limit is insensitive against any changes in the strain path and hence it is used to model the necking and fracture limits. Simulation model is evaluated for a single point incremental forming using AA 6022-T4E32 and checked the accuracy against experiments.
ISBN 9780735411951
ISSN 0094-243X
Language eng
DOI 10.1063/1.4850095
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861199 Basic Metal Products (incl. Smelting
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2014, AIP Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070053

Document type: Conference Paper
Collection: School of Engineering
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