Crashworthiness optimization of foam-filled tailor-welded tube using coupled finite element and smooth particle hydrodynamics method

Gedikli H.

THIN-WALLED STRUCTURES, vol.67, pp.34-48, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 67
  • Publication Date: 2013
  • Doi Number: 10.1016/j.tws.2013.01.020
  • Journal Name: THIN-WALLED STRUCTURES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.34-48
  • Keywords: Crashworthiness, Tailor welded tube, Optimization, Finite element analysis, Smooth particle hydrodynamics, ENERGY-ABSORPTION CHARACTERISTICS, THIN-WALLED STRUCTURES, ALUMINUM FOAM, STRAIN-RATE, BEHAVIOR, DESIGN, MODELS, EMPTY
  • Karadeniz Technical University Affiliated: Yes

Abstract

This paper has presented the optimal design for empty and foam-filled tailor welded tubes (TWTs). Specific energy absorption, peak force and crushing force efficiency (CFE) were used to determine energy absorbing capacity in empty and foam-filled tubes using both finite element and smooth particle hydrodynamics methods. Numerical results showed that SEA and peak force increased with increasing thickness of upper part and foam density while peak forces were significantly low in TWTs made from different materials. Moreover, CFE decreased with increasing thickness of upper part and with decreasing welding location whereas CFE slightly increased with increasing foam density.

This paper has presented the optimal design for empty and foam-filled tailor welded tubes (TWTs). Specific energy absorption, peak force and crushing force efficiency (CFE) were used to determine energy absorbing capacity in empty and foam-filled tubes using both finite element and smooth particle hydrodynamics methods. Numerical results showed that SEA and peak force increased with increasing thickness of upper part and foam density while peak forces were significantly low in TWTs made from different materials. Moreover, CFE decreased with increasing thickness of upper part and with decreasing welding location whereas CFE slightly increased with increasing foam density. (C) 2013 Elsevier Ltd. All rights reserved.