Dynamic compression response of self-reinforced poly(ethylene terephthalate) composites and corrugated sandwich cores |
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| Affiliation: | 1. University of Greenwich, School of Engineering, Kent, ME4 4TB, UK;2. Dokuz Eylul University, Department of Mechanical Engineering, Izmir, 35390, Turkey |
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| Abstract: | A novel manufacturing route for fully recyclable corrugated sandwich structures made from self-reinforced poly(ethylene terephthalate) SrPET composites is developed. The dynamic compression properties of the SrPET material and the out-of-plane compression properties of the sandwich core structure are investigated over a strain rate range 10−4–103 s−1. Although the SrPET material shows limited rate dependence, the corrugated core structures show significant rate dependence mainly attributed to micro-inertial stabilisation of the core struts and increased plastic tangent stiffness of the SrPET material. The corrugated SrPET cores have similar quasi-static performance as commercial polymeric foams but the SrPET cores have superior dynamic compression properties. |
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| Keywords: | B. Mechanical Properties B. Plastic deformation A. Polymer (textile) fibre Ductile composites |
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