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Comparison of ATD to PMHS Response in the Under-Body Blast Environment
Published November 09, 2015 by The Stapp Association in United States
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A blast buck (Accelerative Loading Fixture, or ALF) was developed for studying underbody blast events in a laboratory-like setting. It was designed to provide a high-magnitude, high-rate, vertical loading environment for cadaver and dummy testing. It consists of a platform with a reinforcing cage that supports adjustable-height rigid seats for two crew positions. The platform has a heavy frame with a deformable floor insert. Fourteen tests were conducted using fourteen PMHS (post mortem human surrogates) and the Hybrid III ATD (Anthropomorphic Test Device). Tests were conducted at two charge levels: enhanced and mild. The surrogates were tested with and without PPE (Personal Protective Equipment), and in two different postures: nominal (knee angle of 90°) and obtuse (knee angle of 120°). The ALF reproduces damage in the PMHS commensurate with injuries experienced in theater, with the most common damage being to the pelvis and ankle. Load is transmitted through the surrogates in a caudal-to-cranial sequential fashion. Damage to the PMHS lower extremities begins within 2 ms after the initiation of foot/floor motion. The Hybrid III cannot assume the posture of the PMHS in rigid seats and exhibits a stiffer overall response compared to the PMHS. The ATD does not mimic the kinematic response of the PMHS lower extremities. Further, the Hybrid III does not have the capability to predict the potential for injury in the high-rate, vertical loading environment. A new ATD dedicated to under-body blast is needed to assist in the effort to mitigate injuries sustained by the mounted soldier.
- Kerry A. Danelson - Wake Forest School of Medicine
- Andrew R. Kemper - Virginia Tech
- Matthew J. Mason - Virginia Tech
- Michael Tegtmeyer - US Army Research Laboratory
- Sean A. Swiatkowski - Armed Forces Medical Examiner System
- John H. Bolte IV - The Ohio State University
- Warren N. Hardy - Virginia Tech
CitationDanelson, K., Kemper, A., Mason, M., Tegtmeyer, M. et al., "Comparison of ATD to PMHS Response in the Under-Body Blast Environment," SAE Technical Paper 2015-22-0017, 2015, https://doi.org/10.4271/2015-22-0017.
- Alem, N.M., and Strawn, G.D. (1996) Evaluation of an energy-absorbing truck seat for increased protection from landmine blasts. USAARL Report no. 96-06.
- Alvarez, J. (2011) Epidemiology of blast injuries in current operations. RTO Human Factors and Medicine Panel (HFM) Symposium, pp. KN1-1 to KN1-10. Halifax, Canada.
- Bass, C.R., Donnellan, L. , Salzar, R. , Lucas, S. , Folk, B. , Davis, M. , et al. (2006) A new neck injury criterion in combined vertical/frontal crashes with head supported mass. Proceedings of the 2006 International IRCOBI; 2006 Sept 20-22; Madrid, Spain.
- Dub, M.O., and McFarland, S.M. (2010) Suited Occupant Injury Potential During Dynamic Spacecraft Flight Phases. National Aeronautics and Space Administration, Houston, JSC-CN-199062010.
- Eiband, A.M.(1959) Human Tolerance to Rapidly Applied Accelerations: A Summary of the Literature, NASA Memorandum 5-19-59E.
- Gehre, C., Stahlschmidt, S., (2011) Assessment of Dummy Models by using Objective Rating Methods. 22nd ESV (Paper 11-0216), Washington D.C. (USA).
- Melvin, J.W., Stalnaker, R.L., Alem, N.M., Benson, J.B., and Mohan, D. (1975). Impact response and tolerance of the lower extremities (No. 751159). SAE Technical Paper.
- Mertz, H.J., Irwin, A.L., Prasad, P. (2003) Biomechanical and scaling bases for frontal and side impact injury assessment reference values. Stapp Car Crash J 47:155-188
- Myklebust, J., Sances, A., Jr., Maiman, D., Pintar, F., Chilbert, M., Rauschning, W., Larson, S., Cusick, J., Ewing, C., Thomas, D., and Saitzberg, B. (1983) Experimental Spinal Trauma Studies in the Human and Monkey Cadaver. SAE International, Warrendale, PA. SAE paper No. 831614
- MSMR (Feb 2010). Army Medical Surveillance Activity. Distribution of primary [first-listed] diagnoses during postevacuation medical encounters among U.S. service members evacuated from OIF/OEF, October 2001- September 2009. 17 (2).
- MSMR (Jul 2010). Army Medical Surveillance Activity. Thoracolumbar Spine Fractures, Active and Reserve Components, 2000-2009. 17 (7).
- MSMR (Oct 2010). Army Medical Surveillance Activity. Deployment-related condition of special surveillance interest, amputations of lower and upper extremities, U.S. Armed Forces by month and service, January 2003 - September 2010. 17 (10).
- NATO, (2007) RTO-TR-HFM-090 - Test Methodology for Protection of Vehicle Occupants Against Anti-Vehicular Landmine Effects. Final Report of HFM-090 Task Group 25.
- Owens, B.D., Kragh, J.F., Jr., Macaitis, J., Svoboda, S.J. and Wenke, J.C. (2007) Characterization of extremity wounds in Operation Iraqi Freedom and Operation Enduring Freedom. J Orthop Trauma 21(4): 254-257.
- Owens, B.D., Kragh, J.F., Jr., Wenke, J.C., Macaitis, J., Wade, C.E. and Holcomb, J.B. (2008) Combat wounds in operation Iraqi Freedom and operation Enduring Freedom. J Trauma 64(2): 295-299.
- Padgaonkar (1976) Validation Study of a Three-Dimensional Crash Victim Simulator for Pedestrian-Vehicle Impact. PhD Thesis, Wayne State University.
- Paskoff, G. R., and Sieveka, E. (2004) Influence of Added Head Mass Properties on Head/Neck Loads During Standard Helicopter Impact Conditions. Forty Second Annual SAFE Association Symposium, SAFE Association, Salt Lake City, Utah, pp. 20-40.
- Ramasamy, A., Masouros, S.D., Newell, N., Hill, A.M., Proud, W.G., Brown, K.A., Bull, A.M. and Clasper, J.C. (2011) In-vehicle extremity injuries from improvised explosive devices: current and future foci. Philos Trans R Soc Lond B Biol Sci 366(1562): 160-170.
- SAE (2007) Surface Vehicle Recommended Practice, SAE J211, Instrumentation for Impact Test - Part 1 - Electronic Instrumentation. SAE International.
- Salzar, R.S., Bolton, J.R., Crandall, J.R., Paskoff, G.R., Shender, B.S., (2009) Ejection Injury to the Spine in Small Aviators: Sled Tests of Manikins vs. Post Mortem Specimens. Aviat Space Environ Med, vol 80, pp. 621-628, July 2009.
- Stapp, J. P. (1964). Trauma caused by impact and blast. Clinical neurosurgery,12, 324-343.
- Thunert, C. (2012) CORA Release 3.6, User’s Manual, http://www.pdb-org.com/en/information/18-cora-download.html.