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- Shaw, G., et al.
(author)
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TORSO DEFORMATION IN FRONTAL SLED TESTS: COMPARISION BETWEEN THOR NT, THOR NT WITH THE CHALMERS SD-1 SHOULDER, AND PMHS
- 2010
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In: International IRCOBI Conference on the Biomechanics of Impact. ; , s. 247-264
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Conference paper (peer-reviewed)abstract
- This study compares the thoracic deformation response of the 50th percentile male THOR NTfrontal crash dummy and the response of the THOR modified with the SD-1 shoulder (THOR SD-1)relative to the thoracic response of eight 50th percentile male PMHS. The prototype ChalmersUniversity SD-1 shoulder was designed to be more human-like in terms of geometry and range ofmotion in comparison to the standard THOR NT shoulder. The dummies and PMHS were restrainedby a three-point restraint in a driver-side configuration and were subjected to a simulated 40 km/hfrontal crash. The most prominent difference between the responses of the dummies and PMHSinvolved motion of the lower right anterior ribcage measurement site that is the farthest lateraldistance from the diagonal shoulder belt. During the impact event, this site moved substantiallyanteriorly and away from the spine for the PMHS. The PMHS lower right “bulge out” behavior isbelieved to be caused by inertial loading of the ribcage, underlying organs, and soft tissue overlyingthe torso. The THOR SD-1 shoulder altered the shoulder belt position relative to the thoracicdeflection measurement sites resulting in a different distribution of deformation for the uppermeasurement sites although the average upper site deformation was similar to that recorded for thestandard THOR shoulder.
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