Abstract
This research is aimed at characterising and comparing the mechanical properties of a polymer/metal/polymer laminate and its individual layers. The laminate is cold deep drawn for pharmaceutical packaging, thus the properties were characterised at room temperature. The investigation was needed to understand how the layers contribute to formability in terms of elastic and plastic deformation. Particular attention was given to how the properties of the aluminium alloy layer were enhanced by the addition of each polymer layer. Tensile tests were carried out to determine material strengths, anisotropy and strain-hardening. These properties vary for each layer and the dominating properties in the complete laminate are of strong interest. Cup forming tests were performed to establish the forming depth of the constituent layers, carried out in line with the Erichsen cupping test. Wrinkling of the specimen during these cup forming tests had to be avoided, placing strong emphasis on understanding the stretching mechanism.
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Dubhlaing, F.Ó., Browne, D.J., Rennicks, R., Rennicks, C. (2016). Mechanical Behaviour of Cold Formed Metal-Polymer Laminate and the Interaction of Its Layers. In: Sadler, B.A. (eds) Light Metals 2013. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-65136-1_70
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DOI: https://doi.org/10.1007/978-3-319-65136-1_70
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