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Experimental and numerical evaluation of forming and fracture behaviour of high strength steel

conference contribution
posted on 2008-01-01, 00:00 authored by Chetan Nikhare, P Marcondes, Matthias WeissMatthias Weiss, Peter HodgsonPeter Hodgson
Car manufacturers are under pressure to reduce vehicle mass while maintaining comfort and passenger safety for current and future vehicles. To meet this demand the steel industry has developed Advanced High Strength Steels (AHSS) that promise higher strength and improved formability compared to conventional steel grades. Even though significant research has already been performed to evaluate the material properties and forming behaviour of most AHSS types, only a limited literature is available on their necking and fracture behaviour and the effect on formability. This paper examines and compares the thinning, necking and fracture behaviour of two AHSS and one conventional steel type, namely TRIP, DP and HSLA. Uniaxial, plane and biaxial strain conditions are investigated by tensile, cup drawing and stretch forming tests and by using numerical methods. The test results indicate that significant differences exist in necking and fracture behaviour between all three steel types.



New Developments on Metallurgy and Applications of High Strength Steels : Steel Conference (2008 : Buenos Aires, Argentina)


1 - 13


The Minerals, Metals & Materials Society (TMS)


Buenos Aires, Argentina

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[Buenos Aires, Argentina]

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E1 Full written paper - refereed

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2008, The Minerals, Metals & Materials Society (TMS)


T Perez

Title of proceedings

TMS 2008 : New Developments on Metallurgy and Applications of High Strength Steels: Steel Conference

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