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Oblique Lateral Impact Biofidelity Deflection Corridors from Post Mortem Human Surrogates
Published November 11, 2013 by The Stapp Association in United States
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The objective of the study was to determine the thorax and abdomen deflection-time corridors in oblique side impacts. Data were analyzed from Post Mortem Human Surrogate (PMHS) sled tests, certain aspects of which were previously published. A modular and scalable anthropometry-specific segmented load-wall system was fixed to the platform of the sled. Region-specific forces were recorded from load cells attached to the load-wall plates. The thorax and abdomen regions were instrumented with chestbands, and deflection contours were obtained. Biomechanical responses were processed using the impulse-momentum normalization method and scaled to the mid-size male mass, 76-kg. The individual effective masses of the thorax and abdomen were used to determine the scale factors in each sled test, thus using the response from each experiment. The maximum deflections and their times of attainments were obtained, and mean and plus minus one standard deviation corridors were derived. Test-by-test thorax and abdomen force-time histories are given. Deflection-time histories for each specimen for the two body regions and corridors are presented. The mean maximum deflections for the thorax and abdomen body regions were 68.41 ± 16.1 and 68.98 ± 12.69 mm, respectively. Deflections were greater in oblique than pure lateral loading tests for both body regions, indicating the increased sensitivity of oblique side impact vector to the human response. The mean and one standard deviation responses of the thorax and abdomen serve as biofidelity corridors under oblique loading. Because modern instrumentation techniques can accommodate deflection sensors in the thorax and abdomen in devices such as WorldSID, and computer finite element models are flexible enough to extract regional and local deformation fields, the present data can be used to evaluate dummy biofidelity and validate and verify numerical models. They can be used to advance injury assessment reference values in oblique impacts.
CitationYoganandan, N., Humm, J., Arun, M., and Pintar, F., "Oblique Lateral Impact Biofidelity Deflection Corridors from Post Mortem Human Surrogates," SAE Technical Paper 2013-22-0016, 2013, https://doi.org/10.4271/2013-22-0016.
- SAE 2003. Instrumentation for impact test: Part 1 - electronic Instrumentation-SAE J211/1. In. Warrendale, PA: Society of Automotive Engineers (SAE).
- Been B, Waagmeester K, Trosseille X, Carroll J, Hynd D. 2009. WorldSID small female two-dimensional chest deflection sensors and sensitivity to oblique impact. In: Experimental Safety of Vehicles. Stuttgart, Germany.
- Cavanaugh JM. 1993. Biomechanics of thoracic trauma. In: Nahum A, Melvin J, editors. Accidental Injury: Biomechanics and Prevention. New York: Springer. p 374-404.
- Cavanaugh JM, Walilko TJ, Malhotra A, Zhu Y, King AI. 1990. Biomechanical response and injury tolerance of the thorax in twelve sled side impacts. In: Proc 34th Stapp Car Crash Conf. Orlando, FL. p 23-38.
- Eppinger R. 1976. Prediction of thoracic injury using measurable experimental parameters. In: 6th International Conference on Experimental Safety Vehicles. Washington, DC: NHTSA. p 770-779.
- FMVSS-214. 2008. 49Code of Federal Regulations: 571.214. In. Washington, DC: US Government Printing Office.
- Handman D. 2013. Users manaul: RibEye™ multi-point deflection measurement system: 3-Axis version for the WorldSID 50th ATD. In: Boxboro Systems LLC. p 1-51.
- Irwin A, Walilko T, Cavanaugh J, Zhu Y, King A. 1993. Displacement responses of the shoulder and thorax in lateral sled impacts. In: Stapp Car Crash Conf. San Antonio, TX. p 166-173.
- Irwin AL, Sutterfield A, Hsu TP, Kim A, Mertz HJ, Rouhana SW, 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 J 49:423-456.
- ISO. 1999. ISO/TR9790 - Road vehicles-lateral impact response requirements to assess the biofidelity of the dummy. In: American National Standards Institute, New York, NY.
- Kuppa S, Eppinger RH, McKoy F, Nguyen T, Pintar FA, Yoganandan N. 2003. Development of side impact thoracic injury criteria and their application to the modified ES2 dummy with rib extensions (ES-2re). Stapp Car Crash J 47:189-210.
- Maltese MR, Eppinger RH, Rhule HH, Donnelly BR, Pintar FA, Yoganandan N. 2002. Response corridors of human surrogates in lateral impacts. Stapp Car Crash J 46:321-351.
- Mertz HJ. 1984. A procedure for normalizing impact response data. In: SAE 840884.
- Pintar FA, Maiman DJ, Yoganandan N. 2007. Injury patterns in side pole crashes. Ann Adv Automot Med 51:419-433.
- Pintar FA, Yoganandan N, Hines MH, Maltese MR, McFadden J, Saul R, Eppinger R, Khaewpong N, Kleinberger M. 1997. Chestband analysis of human tolerance to side impact. In: Stapp Car Crash Conf. Lake Buena Vista, FL. p 63-74.
- Pintar FA, Yoganandan N, Sances A, Eppinger R. 1996. Instrumentation of Human Surrogates for Side Impact. In: Stapp Car Crash Conference. Albuquerque, NM. p 29-42.
- Rouhana S, Elhagediab A, Chapp J. 1998. A high-speed sensor for measuring chest deflection in crash test dummies. In: 16th International Technical Conference on the Enhanced Safety of Vehicles Washington, DC.
- Rouhana SW. 1993. Biomechanics of abdominal trauma. In: Nahum A, Melvin J, editors. Accidental Injury: Biomechanics and Prevention. New York: Springer. p 416-453.
- Rupp J, Reed M, Klinich K, Schneider L. 2011. Comparison of WorldSID and cadaver in low-speed and high-speed nearside impact. In: Enhanced Safety of Vehicles. Washington, DC.
- Vavalle NA, Moreno DP, Rhyne AC, Stitzel JD, Gayzik FS. 2013. Lateral impact validation of a geometrically accurate full body finite element model for blunt injury prediction. Ann Biomed Eng 41:497-512.
- Yoganandan N, Humm JR, Pintar FA. 2012a. Modular and scalable load-wall sled buck for pure-lateral and oblique side impact tests. J Biomech 45:1546-1549.
- Yoganandan N, Humm JR, Pintar FA, Brasel KH, Rudd RW, Ridella SA. 2012b. Thoraco-abdominal deflection responses of post mortem human surrogates in side impacts. Stapp Car Crash J 56:49-64.
- Yoganandan N, Pintar FA. 2005. Deflection, acceleration, and force corridors for small females in side impacts. Traffic Inj Prev 6:379-386.
- Yoganandan N, Pintar FA. 2009. Optimal sensor positioning to track rib deflections from an optical system in the Hybrid III dummy. Traffic Inj Prev 10:497-505.
- Yoganandan N, Pintar FA, Maltese MR. 2001. Biomechanics of abdominal injuries. Crit Rev Biomed Eng 29:173-246.
- Yoganandan N, Pintar FA, Skrade D, Chmiel W, Reinartz J, Sances AJr.. 1994. Thoracic biomechanics with air bag restraint. SAE Transactions 102:2597-2607.
- Yoganandan N, Pintar FA, Stemper BD, Gennarelli TA, Weigelt JA. 2007. Biomechanics of side impact: injury criteria, aging occupants, and airbag technology. J Biomech 40:227-243.
- Yoganandan N, Skrade D, Pintar FA, Reinartz J, Sances AJr.. 1991. Thoracic deformation contours in frontal impact. 35th Stapp Car Crash Conf:47-63.