Physically based constitutive framework for precision metal forming processes Online publication date: Thu, 21-Oct-2004
by Zhengfang Qian, Sheng Liu, Han C. Wu
International Journal of Vehicle Design (IJVD), Vol. 21, No. 4/5, 1999
Abstract: A physically based constitutive framework is proposed in this paper for precision metal forming processes. Texture evolution plays a key role for both fully plastic anisotropy and the trigger of deformation bifurcation, which is believed as a bridge to link Rice's localisation analysis with the M-K analysis for FLD (Forming Limit Diagram). Comparing with the finite element discretisation of 3-D crystal orientations, the proposed analytical approach to texture evolution via ODF (Orientation Distribution Function) can reduce computational time tremendously, in addition to enforcing both numerical stability and accuracy. The constitutive framework has potential for the computer-aided simulation of metal forming processes such as springback prediction, FLD calculation, and optimal die design by implementing the framework in a commercial finite element code. A 2-D analysis of localisation and forming limit is presented to illustrate the proposed approach.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Vehicle Design (IJVD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook