Despite the higher specific mechanical properties and the lower density of polymeric foams, these materials present cumulative damage behaviour that implies in the second and successive impacts, their mechanical properties decrease drastically. However, cork and cork agglomerates have the ability to absorb multiple impacts so they could be a more suitable material in some products, such as bumpers and helmets. This article is focused on the study of five different cork agglomerates and a natural cork under four different maximum deformations subjected to four consecutive compression loading cycles. Main diagrams, such as the stress–strain, energy density and efficiency, and the variation in diverse parameters, such as the absorbed energy density and maximum efficiency, were investigated and compared with an expanded polystyrene foam.

尽管聚合物泡沫具有较高的比机械性能和较低的密度，但这些材料仍具有累积的破坏行为，这意味着在第二次和连续冲击中，它们的机械性能会急剧下降。但是，软木和软木附聚物具有吸收多种冲击的能力，因此它们可能是某些产品（例如保险杠和头盔）中更合适的材料。本文重点研究五个不同的软木附聚物和天然软木在四个不同的最大变形下承受四个连续的压缩载荷循环的情况。研究了主要图表，例如应力-应变，能量密度和效率，以及各种参数的变化，例如吸收的能量密度和最大效率，并将其与膨胀聚苯乙烯泡沫进行了比较。