Experimental and Numerical Study of the Mechanical Behavior of a Commercial Polypropylene Woven Fabric


Experimental and Numerical Study of the Mechanical Behavior of a Commercial Polypropylene Woven Fabric

E. Agaliotis, C. Bernal, P.J. Herrera-Franco, E.A. Flores-Johnson

Abstract. Heterogeneous conventional composites have limited recyclability and their end-of-life processes require high energy thus, they represent a recycling challenge. A promising approach to composites recycling is to employ thermoplastic self-reinforced composites (SRCs) for structural building applications. SRCs have specific economic and ecological advantages and can be recycled. Similar to traditional composites, the stress transfer in self-reinforced composites occurs via an interface/interphase, but in this case, molecular entanglements, favorable amorphous/crystalline superstructures, and H-bonding may serve for improved adhesion and hence for stress transfer between matrix and reinforcement via the interphase. In addition, their low density and preferred recycling make them an appealing alternative over traditional composites in many structural applications. As in conventional composites, one of the major determining factors of SRCs final performance is reinforcement behavior. Hence, the evaluation of reinforcement mechanical properties seems to be essential. In this work, the tensile properties of a low‐cost commercial polypropylene (PP) woven fabric composed of highly stretched PP tapes, were investigated. A 3D finite-element model for uniaxial tensile tests of the PP woven fabric was built in Abaqus/Explicit by modeling individual tapes and taking into account friction among them. An orthotropic elastic model was used. In order to obtain an optimal model design for the woven fabric, all the geometrical parameters were experimentally obtained and the tensile properties of individual tapes in both warp and weft directions were also determined. It was observed that the fabric mechanical behavior is mainly affected by the internal geometry of the woven fabric. The simulation results were in good agreement with the fabric mode of failure observed in the experiments.

Polypropylene, Woven Fabric, Finite-Element Modeling, Recycling

Published online , 5 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: E. Agaliotis, C. Bernal, P.J. Herrera-Franco, E.A. Flores-Johnson, ‘Experimental and Numerical Study of the Mechanical Behavior of a Commercial Polypropylene Woven Fabric’, Materials Research Proceedings, Vol. 7, pp 799-803, 2018

DOI: http://dx.doi.org/10.21741/9781945291838-79

The article was published as article 79 of the book Non-Conventional Materials and Technologies

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