Title : ( Necking prediction in tube hydroforming by stress-based forming limit diagrams )
Authors: Abdolrahman Jaamialahmadi , Mehran Kadkhodayan ,Access to full-text not allowed by authors
Abstract
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 analysis via solving equilibrium equations of a pointed vertex on subsequent yield loci are utilized. The presented 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.
Keywords
, Keyword: neck initiation, tube hydroforming, bifurcation analysis, anisotropy, Hill 48, FLSD, Swift@inproceedings{paperid:1016212,
author = {Jaamialahmadi, Abdolrahman and Kadkhodayan, Mehran},
title = {Necking prediction in tube hydroforming by stress-based forming limit diagrams},
booktitle = {8th International Conference on Fracture and Strength of Solids (FEOFS) 2010},
year = {2010},
location = {کوالامپور},
keywords = {Keyword: neck initiation; tube hydroforming; bifurcation analysis;
anisotropy; Hill 48; FLSD; Swift},
}
%0 Conference Proceedings
%T Necking prediction in tube hydroforming by stress-based forming limit diagrams
%A Jaamialahmadi, Abdolrahman
%A Kadkhodayan, Mehran
%J 8th International Conference on Fracture and Strength of Solids (FEOFS) 2010
%D 2010