Crashworthiness improvement of the side crash by the work hardening effect of pre-strained high strength steel

Hiroshi Yoshida, Akihiro Uenishi, Yukihisa Kuriyama, Manabu Takahashi

Research output: Contribution to journalConference articlepeer-review

Abstract

In order to examine the compatibility of improvement of crashworthiness with weight saving of automobiles by using high strength steel, a combination analysis of Finite Element Method and Dynamic Mechanical Properties has been established. Material properties used in this analysis have been measured by "one bar method" high velocity tensile tests, which can examine the deformation behavior of materials at a bend crush speed range (∼55km/h). It was confirmed that the strength of steel measured by one bar method was raised remarkably after press and hydro forming of high strength steels. It was also confirmed by FEM analysis and load drop test that absorbed energy of bend crush was improved by pre-strain effect. Further, we proved that absorbed energy of bend crush was also improved by appropriate design of thickness and the ratio of bend span and plate length. These effects are applicable to respective high strength steels.

Original languageEnglish
JournalSAE Technical Papers
DOIs
Publication statusPublished - 2001
Externally publishedYes
EventInternational Body Engineering Conference and Exhibition - Detroit, MI, United States
Duration: Oct 16 2001Oct 18 2001

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Crashworthiness improvement of the side crash by the work hardening effect of pre-strained high strength steel'. Together they form a unique fingerprint.

Cite this