
Utskrift från Malmö universitet - mau.se
Utskrift från Malmö universitet - mau.se
Publication | Conference Paper, peer reviewed |
Title | Fracture Toughness of a Laminated Composite |
Author | ; ; |
Date | 2003 |
English abstract | |
The fracture toughness of a polymer-metal laminate composite is obtained by mechanical testing of a specimen containing a pre-crack. The laminate is a material used for packaging. It consists of a thin aluminium foil and a polymer coating. A centre cracked panel test geometry is used. Each of the layers forming the laminate is also tested separately. The result is compared with the measured fracture strength of the individual layers. It is observed that the load carrying capacity increases dramatically for the laminate. At the strain when peak load is reached for the laminate only aluminium is expected to carry any substantial load because of the low stiffness of the LDPE. However, the strength of the laminate is almost twice the strength of the aluminium foil. The reason seems to be that the aluminium forces the polymer to absorb large quantities of energy at mmall nominal strain. The toughness compares well with the accumulated toughness of all involved layers. Possible fracture of the interface between the layers is discussed. | |
Conference | |
ESIS TC4 conference (2002 : Les Diablerets, Switzerland) | |
DOI | https://doi.org/10.1016/S1566-1369(03)80108-5 (link to publisher's fulltext.) |
Host/Issue | Fracture of Polymers, Composites and Adhesives II |
Series/Issue | European Structural Integrity Society;32 |
ISBN | 9780080441955 |
Language | eng (iso) |
Subject | Technology Research Subject Categories::TECHNOLOGY::Materials science |
Note | 3rd ESIS TC4 conference, "Fracture of Polymers, Composites and Adhesi... (see Details for more) |
Handle | http://hdl.handle.net/2043/4843 Permalink to this page |
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