Impact Energy Absorption Capability of Magnesium Alloy Pipe

• Ueda Tetsuya

  Department of Mechanical Engineering, Graduate School of Engineering, Kobe University

• Nagao Masaki

  Department of Mechanical Engineering, Graduate School of Engineering, Kobe University

• Ikeo Naoko

  Department of Mechanical Engineering, Graduate School of Engineering, Kobe University

• Washio Kota

  Advanced Materials Engineering Division, Toyota Motor Corporation

• Kinoshita Akihito

  Advanced Materials Engineering Division, Toyota Motor Corporation

• Kato Akira

  Advanced Materials Engineering Division, Toyota Motor Corporation

• Mukai Toshiji

  Department of Mechanical Engineering, Graduate School of Engineering, Kobe University

Bibliographic Information

Other Title

• マグネシウム合金製円管の衝撃エネルギー吸収特性
• マグネシウム ゴウキンセイエンカン ノ ショウゲキ エネルギー キュウシュウ トクセイ

Abstract

  Weight reduction is effective for improving fuel efficiency of automobiles. Although magnesium is widely recognized as the lightest structural metal, applications for the automobile are limited because of the relatively low ductility, toughness, impact resistance and fatigue resistance. The aim of this research was to evaluate the impact energy absorption capability of a magnesium alloy pipe by a numerical simulation. First of all, finite element (FE) analysis of impact compression of magnesium alloy pipes was performed to design the shape of anvils for a dynamic compression experiment. The compression tests were conducted at a high strain rate on two Mg alloys, AZ31 and Mg-0.6Y, to examine the deformation response. The load-displacement data obtained were compared with the results of FE analysis to validate the simulation. The FE analysis revealed that the AZ31 pipe fractured at an early stage of deformation, while the Mg-0.6Y pipe fractured at about 90% compressed. As a result, Mg-0.6Y pipe exhibited lower yield strength, but a higher absorption energy capability than AZ31 pipe due to a weakened basal texture.<br>

Journal

• Journal of the Japan Institute of Metals and Materials

  Journal of the Japan Institute of Metals and Materials 78 (4), 142-148, 2014

  The Japan Institute of Metals and Materials

Keywords

• crashworthiness
• high-strain-rate compression
• finite element analysis
• magnesium alloy pipe

Details

• CRID: 1390001206483142528
• NII Article ID: 130004456422
• NII Book ID: AN00187860
• DOI: 10.2320/jinstmet.jbw201308
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL BIB ID: 025443969
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025443969
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet/78/4/78_JBW201308/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed