Abstract
Cork and cork agglomerates could be suitable replacements for petroleum-based polymeric foams due to their similar internal structure of cells and grains. Additionally, cork products have a renewable origin and are recyclable. Despite these notable properties, few studies have analysed the mechanical properties, especially the specific properties, of these materials under compressive loads. Moreover, although efficiency, ideality, and energy-normalized stress diagrams are commonly used for polymeric foams and 3D-printed lattice structures, these types of diagrams are not yet applied to cork products. It must be highlighted that efficiency diagrams are plotted only against nonspecific properties so, this article proposes additionally the use of nonspecific properties to compare materials not only in terms of properties per unit volume instead but also in terms of properties per unit mass that is more suitable for certain applications in which the weight is crucial. The materials studied herein include three different white cork agglomerates, a brown cork agglomerate, a black cork agglomerate, natural cork, and expanded polystyrene foam, which are subjected to quasi-static compressive loads.
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28 April 2021
A Correction to this paper has been published: https://doi.org/10.1007/s00107-020-01647-1
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The author(s) disclose receipt of financial support for the research, authorship, and/or publication of this article: This work was supported by the “Ibercaja Foundation” Young Research Grant. IberDoD HBCU/MI Basic Research Grant (Grant no. JIUZ-2018-TEC-09), the University of Zaragoza (Spain) and the research group ID-ERGO.
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Miralbes, R., Ranz, D., Ivens, J. et al. Characterization of cork and cork agglomerates under compressive loads by means of energy absorption diagrams. Eur. J. Wood Prod. 79, 719–731 (2021). https://doi.org/10.1007/s00107-020-01625-7
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DOI: https://doi.org/10.1007/s00107-020-01625-7