This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Proposed Method for Development of Small Female and Midsize Male Thorax Dynamic Response Corridors in Side and Forward Oblique Impact Tests
Technical Paper
2015-22-0007
Annotation ability available
Sector:
Language:
English
Abstract
Despite the increasing knowledge of the thorax mechanics, the effects of inter-individual differences on the mechanical response are difficult to take into account. Several methods are available in the literature to refine the biofidelity corridors or to extrapolate them to other populations (eg: children, small females, large males). Because of the lack of concrete cases, the relevance of the assumptions is rarely investigated.
In 2014, Baudrit et al. published data on thorax dynamic responses of small female and midsize male Post Mortem Human Subjects in side and forward oblique impact tests. The impactor mass was 23.4 kg for all the tests and the nominal impact speed was 4.3 m/s. The diameter of the rigid disk was 130 and 152 mm respectively for the small female specimens and for the midsize male specimens. The authors found that the maximum impact force was a function of the total body mass for each loading. They also reported that the ratio of dissipated energy on total deformation energy was almost constant and equal to 0.88.
From these observations, a method was developed to aggregate data of the whole PMHS sample and to construct force time history and deflection time history corridors, for the 50th male and the 5th female, in pure lateral and in forward oblique tests. These corridors are provided in the paper and compared to the literature. Scaling factors derived from the corridors are also provided and used to evaluate the assumptions associated with the corridors provided in the literature.
Recommended Content
Authors
Citation
Baudrit, P. and Trosseille, X., "Proposed Method for Development of Small Female and Midsize Male Thorax Dynamic Response Corridors in Side and Forward Oblique Impact Tests," SAE Technical Paper 2015-22-0007, 2015, https://doi.org/10.4271/2015-22-0007.Also In
References
- Baudrit , P. , Trosseille X. , Petitjean A. , Potier P. , Vallancien G. 2014 Comparison of the thorax dynamic responses of small female and midsize male Post Mortem Human Subjects in side and forward oblique impact tests Stapp Car Crash Journal 58 103 121
- Donnelly B. , Moorhouse K. , Rhule H. , Stammen 2014 A Deformation Energy Approach to Normalizing PMHS Response Data and Developing Biofidelity Targets for Dummy Design Journal of International Research Council on Biomechanics of Injury 303 317
- Eppinger R. H. , Marcus J.H. and Morgan R.M. 1984 Development of Dummy and Injury Index for NHTSA’s Thoracic Side Impact Protection Research Program SAE paper 840885
- Irwin , A.L. , Mertz , H.J. , Elhagediab , A.M. , Moss , S. 2002 Guidelines for assessing the biofidelity of side impact dummies of various sizes and ages Stapp Car Crash Journal 46 297 319
- Irwin , A.L. , Sutterfield , A. , Hsu , T.P. , Kim , A. , Mertz , H.J. , Rouhana , S.W. , Scherer , R. 2005 Side impact response corridors for the rigid flat-wall and offset-wall side impact tests of NHTSA using the ISO method of corridor development Stapp Car Crash Journal 49 423 456
- Irwin , A.L. , Mertz. , H.J. 2010 Rationale for and dimensions of impact surfaces for biofidelity tests of different sizes of frontal and side impact dummies Stapp Car Crash Journal 54 19 35
- ISO/TR9790 Road vehicles-lateral impact response requirements to assess the biofidelity of the dummy Technical Report No. 9790, International Standards Organization 1999 American National Standards Institute New York, NY
- Leport , T. , Baudrit , P. , Potier , P. , Trosseille , X. , Lecuyer , E. 2011 Study of rib fracture mechanisms based on the rib strain profiles in side and forward oblique impact Stapp Car Crash Journal 55 199 250
- Moorhouse , K.M. 2013 An improved normalization methodology for developing mean human response curves 23rd International Technical Conference on Experimental Safety Vehicles paper 13-0192
- Mertz , H. J. 1984 A procedure for normalizing impact response data SAE 840884 Society of Automotive Engineers Warrendale, PA
- Mertz. H.J. , Irwin , A.L. , Melvin , J.W. Stalnaker , R.L. , Beebe , M.S. 1989 Size, weight and biomechanical impact response requirements for adult size small female and large male dummies SAE paper 890756
- Nusholtz GS , Hsu TP , Byers LC A proposed side impact ATD bio-fidelity evaluation scheme using cross-correlation approach Proceedings of the 20th International Technical Conference on the Enhanced Safety of Vehicles 2007 paper no. 07-0399
- Rhule H , Suntay B , Herriott R , Amenson T , Stricklin J , Bolte J. 2011 Response of PMHS to high- and low-speed oblique and lateral pneumatic ram impacts Stapp Car Crash Journal 55 281 315
- Schneider , L.W. , Robbins , D.H. , Pflüg , M.A. , and Snyder , R.G. 1985 Development of an Anthropometrically based Design Specifications for an Advanced Adult Anthropomorphic Dummy Family 1-3 Final Report DOT-HS-806-715 National Highway Traffic Safety Administration U.S. Department of Transportation Washington D.C.
- Shaw , J. , Herriott , R. , McFadden , J. , Donnelly , B. , Bolte , J. 2006 Oblique and Lateral Impact Response of the PMHS Thorax Stapp Car Crash Journal 50 147 167
- Trosseille , X. , Baudrit , P. , Leport , T. , Vallancien , G. 2008 Rib Cage Strain Pattern as a Function of Chest Loading Configuration Stapp Car Crash Journal 52 205 231
- Viano , D.C. 1989 Biomechanical responses and injuries in blunt lateral impact Proceedings of the 33rd Stapp Car Crash Conference Society of Automotive Engineers Warrendale, PA