Model reduction of head impact simulation on a vehicle bonnet

Hala Elrofai, Stratis Kanarachos, Olaf Op den Camp

Research output: Contribution to conferencePaperpeer-review


To reduce the severity of injuries due to head impact on a vehicle bonnet, car manufacturers spend large effort in designing and engineering the bonnet and introducing additional safety measures such as the pop-up bonnet concept. Performance assessment of such systems requires a large number of detailed impact simulations, which results in long computation time. The objective of this research is to reduce the computational burden by developing a reduced order model that meets the accuracy requirements for such a performance evaluation. A model reduction technique, based on “Proper Orthogonal Decomposition”, has been applied using only the results of a commercial Finite Element model for a bonnet of a production car. Special attention has been given to the analysis of information during the model reduction process to determine-at an early stage-the balance between required computation time, speed and accuracy of the resulting reduced model.

Original languageEnglish
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event35th FISITA World Automotive Congress, 2014 - Maastricht, Netherlands
Duration: 2 Jun 20146 Jun 2014


Conference35th FISITA World Automotive Congress, 2014


  • Finite element simulations
  • Head impact
  • Model reduction
  • Proper orthogonal decomposition
  • Solution reconstruction

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality


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