Effect of Microstructural Factors and Mechanical Properties on Axial Crash Fracture of High Strength Steel Sheets

DOI

Bibliographic Information

Other Title
  • 高張力鋼板の軸圧壊破断現象に及ぼす組織因子と材料特性の影響

Abstract

In the application of high strength steels to energy-absorbing parts of automobile, it is important to stably obtain high absorption energy by suppressing fracture in crash deformation. In this study, a new fracture resistance evaluation method simulating the axial crashing deformation in the press formed area was used to clarify the effects of mechanical properties and microstructure on the fracture behavior. High hole expansion ratio (λ) steel with tempered martensite and bainite suppressed both initiation and propagation of the crack in the pre-formed area. From these results, the fracture resistance was thought to improve by controlling microstructure for high λ.

Journal

Keywords

Details 詳細情報について

  • CRID
    1391975831222463360
  • NII Article ID
    130007959684
  • DOI
    10.11351/jsaeronbun.52.94
  • ISSN
    18830811
    02878321
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top