Identification of energy distribution for crash deformational processes of road vehicles

István Harmati, Péter Várlaki

Research output: Contribution to journalArticle


Car body deformation modelling plays a very important role in crash accident analyses, as well as in safe car body design. The determination of the energy absorbed by the deformation and the corresponding Energy Equivalent Speed can be of key importance; however their precise determination is a very difficult task. Although, using the results of crash tests, intelligent and soft methods offer an automatic way to model the crash process itself, as well as to determine the absorbed energy, the before-crash speed of the car, etc. In this paper a model is introduced which is able to describe the changing of the energy distribution during the whole deformational process and to analyze the strength of the different parts without any human intervention thus significantly can contribute to the improvement of the modelling, (automatic) design, and safety of car bodies.

Original languageEnglish
Pages (from-to)19-28
Number of pages10
JournalActa Polytechnica Hungarica
Issue number2
Publication statusPublished - Dec 1 2007



  • Car-crash
  • Deformational energy

ASJC Scopus subject areas

  • Engineering(all)

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