journal article
Open Access
Mar 01, 2018
Application of Auxetic Foam in Sports Helmets
Abstract
This investigation explored the viability of using open cell polyurethane auxetic foams to augment the conformable layer in a sports helmet and improve its linear impact acceleration attenuation. Foam types were compared by examining the impact severity on an instrumented anthropomorphic headform within a helmet consisting of three layers: a rigid shell, a stiff closed cell foam, and an open cell foam as a conformable layer. Auxetic and conventional foams were interchanged to act as the helmet’s conformable component. Attenuation of linear acceleration was examined by dropping the combined helmet and headform on the front and the side. The helmet with auxetic foam reduced peak linear accelerations (p < 0.05) relative to its conventional counterpart at the highest impact energy in both orientations. Gadd Severity Index reduced by 11% for frontal impacts (38.9 J) and 44% for side impacts (24.3 J). The conformable layer within a helmet can influence the overall impact attenuating properties. The helmet fitted with auxetic foam can attenuate impact severity more than when fitted with conventional foam, and warrants further investigation for its potential to reduce the risk of traumatic brain injuries in sport specific impacts.
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References
50
[1]
Sahler "Traumatic brain injury in sports: A review" Rehabil. Res. Pract. (2012)
[2]
McCrea "Unreported concussion in high school football players: Implications for prevention" Clin. J. Sport Med. (2004) 10.1097/00042752-200401000-00003
[3]
Karlsson "One-year follow-up of patients with mild traumatic brain injury: Post-concussion symptoms, disabilities and life satisfaction at follow-up in relation to serum levels of S-100B and neuron-specific enolase in acute phase" J. Rehabil. Med. (2005) 10.1080/16501970510032910
[4]
Guskiewicz "Recurrent concussion and risk of depression in retired professional football players" Med. Sci. Sports Exerc. (2007) 10.1249/mss.0b013e3180383da5
[5]
Rowson "Can helmet design reduce the risk of concussion in football? Technical note" J. Neurosurg. (2014) 10.3171/2014.1.jns13916
[6]
Kis "Rotational acceleration measurements-evaluating helmet protection" Can. J. Neurol. Sci. (2004) 10.1017/s031716710000370x
[7]
Post "Rotational acceleration, brain tissue strain, and the relationship to concussion" J. Biomech. Eng. (2015) 10.1115/1.4028983
[8]
Rowson "Development of the STAR evaluation system for football helmets: Integrating player head impact exposure and risk of concussion" Ann. Biomed. Eng. (2011) 10.1007/s10439-011-0322-5
[9]
McIntosh "Biomechanical considerations in the design of equipment to prevent sports injury" Proc. Inst. Mech. Eng. Part P (2012)
[10]
NOCSAE DOC (2011). 001-13m15, Standard Test Method and Equipment Used in Evaluating the Performance Characteristics of Protective Headgear/Equipment, National Operating Committee on Standards for Athletic Equipment.
[11]
Marjoux "Head injury prediction capability of the HIC, HIP, SIMon and ULP criteria" Accid. Anal. Prev. (2008) 10.1016/j.aap.2007.12.006
[12]
Gadd, C.W. (1966). Use of a Weighted-Impulse Criterion for Estimating Injury Hazard, SAE International. SAE Technical Paper No. 660793.
10.4271/660793
[13]
King, A.I., Yang, K.H., Zhang, L., Hardy, W., and Viano, D. (2003, January 25). Is head injury caused by linear or angular acceleration?. Proceedings of the IRCOBI Conference, Lisbon, Portugal.
[14]
Rowson "Brain injury prediction: Assessing the combined probability of concussion using linear and rotational head acceleration" Ann. Biomed. Eng. (2013) 10.1007/s10439-012-0731-0
[15]
Aare "Injury tolerances for oblique impact helmet testing" Int. J. Crashworth. (2004) 10.1533/ijcr.2004.0268
[16]
Gennarelli "Head Injury in Man and Experimental Animals: Clinical Aspects" Acta Neurochir. Suppl. (1983) 10.1007/978-3-7091-4147-2_1
[17]
Margulies "A proposed Tolerance Criterion for Diffuse Axonal Injuries in Man" J. Biomech. (1992) 10.1016/0021-9290(92)90231-o
[18]
Dimasi, F.P., Eppinger, R.H., and Bandak, F.A. (1995, January 8–10). Computational Analysis of Head Impact Response under Car Crash Loadings. Proceedings of the 39th STAPP Car Crash Conference, San Diego, CA, USA. SAE 952718.
10.4271/952718
[19]
Ueno "Finite Element Model Study of Head Impact Based on Hybrid III Head Acceleration: The Effects of Rotational and Translational Acceleration" J. Biomech. Eng. (1995) 10.1115/1.2794187
[20]
Gennarelli "Diffuse Axonal Injury and Traumatic Coma in the Primate" Ann. Neurol. (1982) 10.1002/ana.410120611
[21]
Hoshizaki "Current and future concepts in helmet and sports injury prevention" Neurosurgery (2014) 10.1227/neu.0000000000000496
[22]
Mosleh "Anisotropic Polyethersulfone Foam for Bicycle Helmet Liners to Reduce Rotational Acceleration during Oblique Impact" Proc. Inst. Mech. Eng. Part H (2017)
[23]
Honarmandi, P., and Sadegh, A.M. (2012, January 9–15). Modeling and impact analysis of football helmets: Toward mitigating mTBI. Proceedings of the ASME 2012 International Mechanical Engineering Congress and Exposition, Houston, TX, USA.
10.1115/imece2012-87173
[24]
Von Holst, H., and Halldin, P. (1999). Protective Helmet. (US6658671B1).
[25]
Kleiven "Correlation of an FE Model of the Human Head with Local Brain Motion--Consequences for Injury Prediction" Stapp Car Crash J. (2002)
[26]
Kleiven "Influence of impact direction on the human head in prediction of subdural hematoma" J. Neurotrauma (2002) 10.1089/089771503765172327
[27]
Kleiven "Evaluation of head injury criteria using a finite element model validated against experiments on localized brain motion, intracerebral acceleration, and intracranial pressure" Int. J. Crashworth. (2006) 10.1533/ijcr.2005.0384
[28]
Casson "Twelve years of national football league concussion data" Sports Health (2010) 10.1177/1941738110383963
[29]
Ekeland, A., Rødven, A., and Heir, S. (2017). Injury Trends in Recreational Skiers and Boarders in the 16-Year Period 1996–2012, Springer. Snow Sports Trauma and Safety.
10.1007/978-3-319-52755-0_1
[30]
Dickson "Head injury trends and helmet use in skiers and snowboarders in Western Canada, 2008–2009 to 2012–2013: An ecological study" Scand. J. Med. Sci. Sports (2017) 10.1111/sms.12642
[31]
Duncan "A Comparison of Novel and Conventional Fabrication Methods for Auxetic Foams for Sports Safety Applications" Procedia Eng. (2016) 10.1016/j.proeng.2016.06.323
[32]
Allen, T., Duncan, O., Foster, L., Senior, T., Zampieri, D., Edeh, V., and Alderson, A. (2017). Auxetic Foam for Snow-Sport Safety Devices, Springer. Snow Sports Trauma and Safety.
10.1007/978-3-319-52755-0_12
[33]
Lisiecki "Tests of polyurethane foams with negative Poisson’s ratio" Phys. Status Solidi B (2013) 10.1002/pssb.201384232
[34]
Duncan "Fabrication, characterisation and modelling of uniform and gradient auxetic foam sheets" Acta Mater. (2017) 10.1016/j.actamat.2017.01.004
[35]
Alderson, A., Alderson, K.L., Davies, P.J., and Smart, G.M. (2005, January 5–11). The Effects of Processing on the Topology and Mechanical Properties of Negative Poisson’s Ratio Foams. Proceedings of the ASME 2005 International Mechanical Engineering Congress and Exposition, American Society of Mechanical Engineers, Orlando, FL, USA.
10.1115/imece2005-82404
[36]
Foam Structures with a Negative Poisson's Ratio
Roderic Lakes
Science
1987
10.1126/science.235.4792.1038
[37]
Gibson, L., and Ashby, M. (1997). The mechanics of foams: Basic results. Cellular Solids: Structure and Properties, Cambridge University Press.
[38]
Allen "Auxetic foams for sport safety applications" Procedia Eng. (2015) 10.1016/j.proeng.2015.07.183
[39]
Scarpa "Auxetic compliant flexible PU foams: Static and dynamic properties" Phys. Status Solidi B (2005) 10.1002/pssb.200460386
[40]
Critchley "A review of the manufacture, mechanical properties and potential applications of auxetic foams" Phys. Status Solidi B (2013) 10.1002/pssb.201248550
[41]
Sanami "Auxetic materials for sports applications" Procedia Eng. (2014) 10.1016/j.proeng.2014.06.079
[42]
Allen, T., Hewage, T., Newton-Mann, C., Wang, W., Duncan, O., and Alderson, A. (2017). Fabrication of Auxetic Foam Sheets for Sports Applications. Phys. Status Solidi B, 254.
10.1002/pssb.201700596
[43]
Duncan "Quasi-static characterisation and impact testing of auxetic foam for sports safety applications" Smart Mater. Struct. (2016) 10.1088/0964-1726/25/5/054014
[44]
Allen "Low-kinetic energy impact response of auxetic and conventional open-cell polyurethane foams" Phys. Status Solidi B (2015) 10.1002/pssb.201451715
[45]
Ge "A comparative study between felted and triaxial compressed polymer foams on cushion performance" J. Cell. Plast. (2013) 10.1177/0021955x13503844
[46]
Martz "Re-entrant transformation methods in closed cell foams" Cell. Polym. (1996) 10.1177/0262489319961504001
[47]
U.S. Department of Transportation (1999). Federal Motor Vehicle Safety Standards and Regulations, 208E.
[48]
NOCSAE DOC (2014). 022-10m12: Standard Performance Specification for Newly Manufactured Baseball/Softball Batter’s, National Operating Committee on Standards for Athletic Equipment. NOCSAE Standards Database.
[49]
Duncan, O., Allen, T., Foster, L., Gatt, R., Grima, J.N., and Alderson, A. (2018). Controlling Density and Modulus in Auxetic Foam Fabrications—Implications for Impact and Indentation Testing. Proceedings, 2.
10.3390/proceedings2060250
[50]
Critchley "The Preparation of Auxetic Foams by Three-Dimensional Printing and Their Characteristics" Adv. Eng. Mater. (2013) 10.1002/adem.201300030
Metrics
124
Citations
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References
Details
- Published
- Mar 01, 2018
- Vol/Issue
- 8(3)
- Pages
- 354
- License
- View
Authors
Cite This Article
Leon Foster, Prashanth Peketi, Thomas Allen, et al. (2018). Application of Auxetic Foam in Sports Helmets. Applied Sciences, 8(3), 354. https://doi.org/10.3390/app8030354
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