CUED Publications database

Impact response of ductile self-reinforced composite corrugated sandwich beams

Schneider, C and Kazemahvazi, S and Russell, BP and Zenkert, D and Deshpande, VS (2016) Impact response of ductile self-reinforced composite corrugated sandwich beams. Composites Part B: Engineering, 99. pp. 121-131. ISSN 1359-8368

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Abstract

© 2016 Elsevier Ltd Corrugated sandwich beams made entirely from self-reinforced poly (ethylene terephthalate) SrPET are manufactured and tested dynamically. The beams are subjected to impact loading at the mid-span using a metal foam projectile and the beam deflection is measured. For sandwich beams with a constant areal mass, beams with a high mass portion in the core webs outperform configurations with a high mass portion in the face sheets (given that the face sheets are thick enough to carry the transversal loads induced by the core webs). Reinforcing the face sheet – core web interface further improves the impact response. The strain rate sensitivity of SrPET has also been investigated. A three-dimensional finite element (FE) model has been developed to simulate the impact event and a good agreement is found with the measured response. It is found that corrugated sandwich beams made from SrPET has competitive impact performance compared to similar sandwich beams with equal mass and geometry out of aerospace grade aluminium and carbon fiber/high performance foam sandwich.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:19
Last Modified: 23 Nov 2017 03:41
DOI: