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Experimental study of natural cork and cork agglomerates as a substitute for expanded polystyrene foams under compressive loads.

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Title: Experimental study of natural cork and cork agglomerates as a substitute for expanded polystyrene foams under compressive loads.
Authors: Buil, Ramon Miralbes1 (AUTHOR) miralbes@unizar.es, Angulo, David Ranz1 (AUTHOR), Ivens, Jan2 (AUTHOR), Blasco, Javier Oscar Abad1 (AUTHOR)
Source: Wood Science & Technology. Mar2021, Vol. 55 Issue 2, p419-443. 25p.
Subjects: Compression loads, Cork, Polystyrene, Heat treatment, Dynamic loads, Foam
Abstract: 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. [ABSTRACT FROM AUTHOR]
Copyright of Wood Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Experimental study of natural cork and cork agglomerates as a substitute for expanded polystyrene foams under compressive loads.
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  Data: <searchLink fieldCode="JN" term="%22Wood+Science+%26+Technology%22">Wood Science & Technology</searchLink>. Mar2021, Vol. 55 Issue 2, p419-443. 25p.
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  Data: <searchLink fieldCode="DE" term="%22Compression+loads%22">Compression loads</searchLink><br /><searchLink fieldCode="DE" term="%22Cork%22">Cork</searchLink><br /><searchLink fieldCode="DE" term="%22Polystyrene%22">Polystyrene</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+loads%22">Dynamic loads</searchLink><br /><searchLink fieldCode="DE" term="%22Foam%22">Foam</searchLink>
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  Data: 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Wood Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00226-020-01254-6
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        Text: English
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        Type: general
      – SubjectFull: Cork
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      – SubjectFull: Polystyrene
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      – SubjectFull: Heat treatment
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      – SubjectFull: Dynamic loads
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              Text: Mar2021
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              Y: 2021
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