Frontal and oblique collisions: evaluation of injury risk and restraint protection system for upgraded THOR dummy

This project aimed to understand the thoracic loading of the upgraded THOR crash test dummy in frontal and oblique loading conditions using current and state-of-the-art restraint systems. In addition, the project aimed to evaluate and rank proposed injury criteria in terms of real life relevance and capability of countermeasure differentiation. In order to understand potential benefits and limitations of the THOR dummy, a Finite Element (FE)-model was needed. This led to that a large part of the project focused on developing the FE-THOR since an updated and valid model was not available at the project start. In addition, The FE human body model THUMS was used to relate the FE-THOR crash test findings to humanlike responses. For a detailed evaluation of the thoracic response, the physical THOR dummy was subjected to quasi-static loading. A probe was pressed down on the thorax to check if localized loading was picked up by the four IR-Traccs measuring chest deflection in three directions. The thorax´s capability of identifying variations due to belt routing was checked by pulling the belt in different angles across the thorax (table top tests). Sled tests using a body-in-white (BIW) was performed to evaluate if the head and chest responses in a complete vehicle oblique impact crash test method (proposed by NHTSA), could be replicated in a sled test environment. Additionally, generic sled tests were performed to check variations to different types of restraints. For the development and validation of the FE-THOR, all the physical tests were replicated virtually. In addition, thoracic responses and overall kinematic of the occupant models were compared using FE-THOR and THUMS in the generic sled setup using ten different restraint configurations.

  • Corporate Authors:

    Fordonsstrategisk Forskning och Innovation (FFI)

    ,   Sweden 
  • Authors:
    • Sunnevång, Cecilia
    • Aderum, Tobias
    • Dahlgren, Mikael
    • Forsberg, Christian
    • Lundgren, Christer
    • Jakobsson, Lotta
    • Östmann, Merete
  • Publication Date: 2015

Language

  • English

Media Info

  • Pagination: 16

Subject/Index Terms

Filing Info

  • Accession Number: 01664475
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD, VTI
  • Created Date: Mar 28 2018 10:26AM