Transformation of localized necking of strain space into stress space for advanced high strength steel sheet

Conference proceedings article

Authors/Editors

SURASAK SURANUNTCHAI

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Publication Details

Author list: Nakwattanaset A., Suranuntchai S.

Publisher: IOP Publishing

Publication year: 2018

Volume number: 317

Issue number: 1

ISSN: 1757-8981

eISSN: 1757-899X

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044520059&doi=10.1088%2f1757-899X%2f317%2f1%2f012078&partnerID=40&md5=b8be57e630df08bd061f51ec85e58af6

Languages: English-Great Britain (EN-GB)

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Abstract

Normally, Forming Limit Curves (FLCs) can't explain for shear fracture better than Damage Curve, this article aims to show the experimental of Forming Limit Curve (FLC) for Advanced High Strength Steel (AHSS) sheets grade JAC780Y with the Nakazima forming test and tensile tests of different sample geometries. From these results, the Forming Limit Curve (strain space) was transformed to damage curve (stress space) between plastic strain and stress triaxiality. Therefore, Stress space transformed using by Hill-48 and von-Mises yield function. This article shows that two of these yield criterions can use in the transformation. ฉ Published under licence by IOP Publishing Ltd.

Keywords