000117234 001__ 117234
000117234 005__ 20240319080954.0
000117234 0247_ $$2doi$$a10.3390/app12052455
000117234 0248_ $$2sideral$$a128639
000117234 037__ $$aART-2022-128639
000117234 041__ $$aeng
000117234 100__ $$0(orcid)0000-0002-3398-067X$$aJuste-Lorente, Ó.
000117234 245__ $$aEffects of Including a Penetration Test in Motorcyclist Helmet Standards: Influence on Helmet Stiffness and Impact Performance
000117234 260__ $$c2022
000117234 5060_ $$aAccess copy available to the general public$$fUnrestricted
000117234 5203_ $$aRegulation ECE-22.05/06 does not require a helmet penetration test. Penetration testing is controversial since it has been shown that it may cause the helmet to behave in a non-desirable stiff way in real-world crashes. This study aimed to assess the effect of the penetration test in the impact performance of helmets. Twenty full-face motorcycle helmets were penetration tested at multiple locations of the helmet shell. Then, 10 helmets were selected and split into two groups (hard shell and soft shell) depending on the results of the penetration tests. These 10 helmets were then drop tested at front, lateral, and top areas at two different impact speeds (5 m/s and 8.2 m/s) to assess their impact performance against head injuries. The statistical analyses did not show any significant difference between the two groups (hard/soft shell) at 5 m/s. Similar results were observed at 8.2 m/s, except for the top area of the helmet in which the peak linear acceleration was significantly higher for the soft shell group than for the hard shell group (230 ± 12 g vs. 211 ± 11 g; p-value = 0.038). The results of this study suggest that a stiffer shell does not necessarily cause helmets to behave in a stiffer way when striking rigid flat surfaces. These experiments also showed that hard shell helmets can provide better protection at higher impact speeds without damaging helmet performance at lower impact speeds. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
000117234 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000117234 590__ $$a2.7$$b2022
000117234 592__ $$a0.492$$b2022
000117234 591__ $$aPHYSICS, APPLIED$$b78 / 160 = 0.488$$c2022$$dQ2$$eT2
000117234 591__ $$aENGINEERING, MULTIDISCIPLINARY$$b42 / 90 = 0.467$$c2022$$dQ2$$eT2
000117234 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b100 / 178 = 0.562$$c2022$$dQ3$$eT2
000117234 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b208 / 343 = 0.606$$c2022$$dQ3$$eT2
000117234 593__ $$aFluid Flow and Transfer Processes$$c2022$$dQ2
000117234 593__ $$aMaterials Science (miscellaneous)$$c2022$$dQ2
000117234 593__ $$aEngineering (miscellaneous)$$c2022$$dQ2
000117234 593__ $$aInstrumentation$$c2022$$dQ2
000117234 593__ $$aProcess Chemistry and Technology$$c2022$$dQ3
000117234 593__ $$aComputer Science Applications$$c2022$$dQ3
000117234 594__ $$a4.5$$b2022
000117234 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000117234 700__ $$0(orcid)0000-0003-1261-8847$$aMaza, M.$$uUniversidad de Zaragoza
000117234 700__ $$0(orcid)0000-0002-0019-4103$$aPiqueras, A.
000117234 700__ $$0(orcid)0000-0001-8292-6613$$aLorente Corellano , A. I.
000117234 700__ $$aLópez-Valdés, F. J.
000117234 7102_ $$15004$$2530$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Ingen.e Infraestr.Transp.
000117234 773__ $$g12, 5 (2022), 2455 [12 pp]$$pAppl. sci.$$tApplied Sciences (Switzerland)$$x2076-3417
000117234 8564_ $$s2227653$$uhttps://zaguan.unizar.es/record/117234/files/texto_completo.pdf$$yVersión publicada
000117234 8564_ $$s2766384$$uhttps://zaguan.unizar.es/record/117234/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000117234 909CO $$ooai:zaguan.unizar.es:117234$$particulos$$pdriver
000117234 951__ $$a2024-03-18-13:28:50
000117234 980__ $$aARTICLE