The Library
Determining a probabilistic forming limit curve
Tools
Tools
Tools
Small, Neil, Hazra, S. K. , Williams, D. K., Roy, Rajat, Nichols, Thomas E., Aylmore, R. and Hollingdale, D. (2013) Determining a probabilistic forming limit curve. In: The 9th International conference and workshop on numerical simulation of 3D sheet metal forming process, Melbourne, Australia, 6-10 Jan 2014. Published in: AIP Conference Proceedings, 1567 (1). ISBN 9780735411951. ISSN 0094-243X.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://scitation.aip.org/content/aip/proceeding/ai...
Abstract
Forming Limit Curves are surrounded by uncertainty - in particular the uncertainty surrounding the calculation of limit strains from experimental data. The position dependent method outlined in ISO12004-2 is known to make assumptions regarding the behavior of sheet metal at the onset of necking. Recent time dependent methods better utilize measured strain data from digital image correlation (DIC) techniques to determine the onset of localized necking. Both approaches generate a series of forming limit strains which require subsequent interpretation to produce a deterministic forming criterion. By acknowledging the inherent heterogeneous plastic deformation behavior of sheet metal, a new statistical approach to quantifying formability is proposed. Gaussian Mixture Models are used to characterize DIC-measured strain data and to determine both onset of localized necking and the size and location of the neck itself. By avoiding any pre-conceptions regarding the size or characteristics of the localized neck, a more realistic and robust probabilistic forming criterion is attainable.
| Item Type: | Conference Item (Paper) | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics T Technology > TN Mining engineering. Metallurgy |
||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Statistics Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
||||
| Library of Congress Subject Headings (LCSH): | Sheet-metal -- Mathematical models, Steel, High strength, Automobiles -- Design and construction | ||||
| Journal or Publication Title: | AIP Conference Proceedings | ||||
| Publisher: | American Institute of Physics | ||||
| ISBN: | 9780735411951 | ||||
| ISSN: | 0094-243X | ||||
| Official Date: | 16 December 2013 | ||||
| Dates: |
|
||||
| Volume: | 1567 | ||||
| Number: | 1 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Conference Paper Type: | Paper | ||||
| Title of Event: | The 9th International conference and workshop on numerical simulation of 3D sheet metal forming process | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Melbourne, Australia | ||||
| Date(s) of Event: | 6-10 Jan 2014 |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
