Experimental investigation of quasi-static and intermediate strain rate behaviour of polypropylene glass fibre (PPGF) woven composite

Antoine Martin (1) , Ramzi Othman (1) , Patrick Rozycki (1)

1 GeM - Institut de Recherche en Génie Civil et Mécanique

This article covers an in plane experimental characterisation of a polypropylene glass fibre reinforced woven composite. Tensile, shear and compression loadings were carried out with a standard tensile rig and a crossbow/Hopkinson pressure bar rig. The specimen strain was measured by digital image correlation technique. It is concluded that the composite stiffness and strength are highly sensitive to strain rate. Static and dynamic multicycle tests were also undertaken to identify and quantify softening phenomenon. Thus, permanent plastic strain and reduction in stiffness are observed and quantified.

Mots clés: Impact behaviour; Intermediate strain rate; Mechanical testing; Polymer–matrix composites

Domaines: Mécanique des matériaux [physics.class-ph]

Antoine Martin, Ramzi Othman, Patrick Rozycki. Experimental investigation of quasi-static and intermediate strain rate behaviour of polypropylene glass fibre (PPGF) woven composite. Plastics, Rubber and Composites, 2015, 44 (1), pp.1-10. ⟨10.1179/1743289814Y.0000000110⟩. ⟨hal-01240019⟩