166036 20260119170325.0 doi 10.1007/s00226-020-01254-6 sideral 123359 ART-2021-123359 eng Miralbes Buil, R. Universidad de Zaragoza (orcid)0000-0002-9702-9314 Experimental study of natural cork and cork agglomerates as a substitute for expanded polystyrene foams under compressive loads 2021 Expanded polystyrene (EPS) is a material that is widely used in energy absorbing applications, especially in helmets, despite its non-renewable origin. Cork and its derivatives, however, are proposed as a substitute for polystyrene foam (EPS) due to their renewable origin and their easy recyclability. In spite of the low-environmental footprint of cork and its derivatives, there is insufficient data on their mechanical behaviour. Consequently, under dynamic and quasi-static loads, four different-density EPS, a natural cork material and five different cork products with different grain sizes and heat treatments were tested. They were compared in terms of their stress–strain and specific stress–strain curve, their volumetric capability to absorb energy, their specific energy, average decelerations and peak deceleration. Finally, EPS foams cannot recover their initial shape upon deformation due to their low resilience capability. This is especially important in applications such as helmets, which are bound to be subjected to multiple impacts. However, cork and its products could have this capability for resilience and would therefore be more suitable for certain applications. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.898 2021 MATERIALS SCIENCE, PAPER & WOOD 2 / 20 = 0.1 2021 Q1 T1 FORESTRY 20 / 69 = 0.29 2021 Q2 T1 0.553 2021 Forestry 2021 Q1 Plant Science 2021 Q1 Industrial and Manufacturing Engineering 2021 Q1 4.5 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Ranz Angulo, D. Universidad de Zaragoza (orcid)0000-0001-8451-660X Ivens, J. Abad Blasco, J.O. Universidad de Zaragoza (orcid)0000-0002-8411-1247 5004 545 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Ingeniería Mecánica 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 55 (2021), 419–443 Wood sci. technol. WOOD SCIENCE AND TECHNOLOGY 0043-7719 10700324 http://zaguan.unizar.es/record/166036/files/texto_completo.pdf Postprint 2080391 http://zaguan.unizar.es/record/166036/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:166036 articulos driver 2026-01-19-14:38:38 ARTICLE