Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Methodology for the accuracy improvement of FEM beam type T-junctions of buses and coaches structures
Year:2013
Research Areas
  • Engineering
Information
Abstract
The analysis of structures with finite elements methods (FEM) represents a widely spread technique. For large tubular structures similar to the buses and coaches upper structures, beam type elements are utilized due to the fact that these elements provide satisfactory results at relatively reduced computational performances. However the beam type elements have a main disadvantage determined by the fact that the modeled joints have a n infinite rigid behavior. This shortcoming determines a stiffer behavior of the modeled structures which translates into an error source for the structural simulations (up to 45%). To overcome this problem, a simple methodology was conceived and an alternative optimized equivalent beam model obtained. The methodology studies the behavioral characteristics of beam modeled T-junctions determining their limitations and comparing them to equivalent T - junctions modeled with shell and volume elements. This way an improved T-junction has been obtained, in which the behavioral error was reduced to less than 5%. Furthermore the FEM obtained results were validated with real T-junctions
International
Si
JCR
Si
Title
International Journal of Automotive Technology
ISBN
1229-9138
Impact factor JCR
0,69
Impact info
Datos JCR del año 2012
Volume
14
10.1007/s12239-013-0090-3
Journal number
5
From page
817
To page
827
Month
SIN MES
Ranking
Participants
  • Autor: Enrique Alcala Fazio (UPM)
  • Autor: Francisco Mariano Badea Romero (UPM)
  • Autor: Ángel Luis Martín López (UPM)
  • Autor: Francisco Aparicio Izquierdo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Inv. en Seguridad e Impacto Medioambiental de Vehículos y Transportes (GIVET)
  • Centro o Instituto I+D+i: Instituto Universitario de Investigación del Automóvil (INSIA)
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