Ultra and Very High Strength Steels (UHSS, VHSS) solutions are proposed
by ArcelorMittal to meet front, side, rear and rollover crash
requirements. UHSS and VHSS steel monolithic solutions have
strongly progressed crash safety and lightening. Another step
towards higher performance is afforded by UHSS and VHSS Tailored
Welded Blank (TWB) configurations.
Three parts are analysed that participate actively in vehicle crashworthiness:
sidemember, B-pillar reinforcement and front-end bumper.
A comparison between monolithic solutions and TWB solutions
is presented, in order to determinate the extra gains (i.e. mass
saving, energy absorption) that a TWB solution can offer.