|
Title: Stamping and Crash Performance of Dual Phase Steel
Document #: SAE 2001-01-3074
Presented at: International Body Engineering Conference & Exposition
(IBEC),
October 2001, Detroit MI.
Author: Ming Chen & Jonathan Drouin, U. S. Steel; Tom Seel, Renato Dell’Osso &
Paul Belanger, DaimlerChrysler
Click here to order
this paper from
SAE
Abstract: Traditionally, high-strength low-alloy (HSLA) steel is used for automotive vehicle weight reduction in the North American automotive industry. Dual phase (DP) high strength steel has gained great attention because it provides a combination of high strength and good formability. The main advantage of DP steel is the high ratio of tensile strength to yield strength, which provides more flexibility in stamping and higher energy absorption in a component crush event. This study compares the performances of DP and HSLA steel grades in stamping processes and component crush events, as shown in a typical automotive unibody inner rail. Simulation results show that DP steel offers more uniform strain distribution, improved formability, and better crash performance than conventional HSLA steel.
|
