Paper Title:
Necking Prediction in Tube Hydroforming by Stress-Based Forming Limit Diagrams
  Abstract

Path-independent stress based forming limit diagrams for anisotropic materials along with the Hill 48 yield function; power law strain hardening and isotropic hardening are derived. Bifurcation analyses via solving equilibrium equations of a pointed vertex on subsequent yield loci are utilized. The presented practical forming limit diagrams (FLSDs) show more acceptable agreements with experimental data compared with those obtained by other methods. A typical neck detection macro in APDL is developed by FEA simulation for a free bulge tube hydroforming to confirm the significant simplicity and straightforwardness of the mentioned FLSD.

  Info
Periodical
Key Engineering Materials (Volumes 462-463)
Edited by
Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri
Pages
284-288
DOI
10.4028/www.scientific.net/KEM.462-463.284
Citation
A. Jaamialahmadi, M. Kadkhodayan, "Necking Prediction in Tube Hydroforming by Stress-Based Forming Limit Diagrams", Key Engineering Materials, Vols. 462-463, pp. 284-288, 2011
Online since
January 2011
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Price
$32.00
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