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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/23642
Title: Implementation of YLD-96 Plasticity Theory in Formability Analysis of Bi-axial Pre-strained Steel Sheets
Authors: Basak, Shamik
Panda S.K.
Gupt N.K.
Iqba M.A.
Published in: Procedia Engineering
11th International Symposium on Plasticity and Impact Mechanics, IMPLAST 2016
Abstract: In the present work, 15% bi-axial pre-strain with 0.98 strain ratio was induced in extra deep drawing (EDD) steel sheets using an in-plane stretch forming set-up. Subsequently the quasi-static uni-axial tensile responses were evaluated experimentally, and the YLD-96 plasticity theory was implemented to estimate the anisotropic coefficients of both as-received and pre-strained materials. The strain based forming limit diagrams (E-FLD) were evaluated by deforming sheet materials under six different strain paths ranging from 0.94 to -0.31 in a limiting dome height (LDH) test set-up. It was found that the failure strains of the pre-strained material decreased significantly with a shift towards tension-tension region, and hence, the polar effective plastic strain-FLD (PEPS-FLD) was estimated using the formulated YLD-96 plasticity theory to restrict the dynamic shift of failure strains. The FE models of LDH testing of both as-received and pre-strained materials were developed, and the formability was predicted successfully by incorporating PEPS-FLD as a damage model within an error of approximately 6%. © 2017 The Authors.
Citation: Procedia Engineering (2017), 173: 1085-1092
URI: https://doi.org/10.1016/j.proeng.2016.12.189
http://repository.iitr.ac.in/handle/123456789/23642
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Bi-axial pre-strain
EDD steel
PEPS-FLD
Yld-96 plasticity theory
ISSN: 18777058
Author Scopus IDs: 56489932500
55213614000
Author Affiliations: Basak, S., Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
Panda, S.K., Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
Corresponding Author: Panda, S.K.; Department of Mechanical Engineering, India; email: sushanta.panda@mech.iitkgp.ernet.in
Appears in Collections:Conference Publications [ME]

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