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

Gedikli H.

THIN-WALLED STRUCTURES, cilt.67, ss.34-48, 2013 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.tws.2013.01.020
  • Dergi Adı: THIN-WALLED STRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.34-48
  • Anahtar Kelimeler: 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 Teknik Üniversitesi Adresli: Evet

Özet

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.

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.