The effect of loading rate on the in-plane shear strength of tri-axial braided composites. (February 2022)

• Record Type: Journal Article
• Authors: May, Michael; Kilchert, Sebastian
• Is Part Of: Journal of composite materials. Volume 56:Number 3(2022)
• Page Start: 421
• Page End: 426
• Publication Date: 2022-02
• Subjects: Rate effect -- braided composite -- mechanical testing -- fabrics, crash -- high-rate testing -- in-plane shear strength; Composite materials -- Periodicals; Composites -- Périodiques; 620.118
• DOI: 10.1177/00219983211047687
• Languages: English
• ISSNs: 0021-9983

Abstract

The in-plane shear strength of tri-axial braided composite materials was measured for three different braid angles (30°, 45°, and 60°) and two strain rates (0.001 s −1 ; 3 s −1 ) using the three-rail shear test. The in-plane shear strength was found to be sensitive to both—the braid angle and the strain rate. An increase of braid angle resulted in a reduction of shear strength, whilst an increase of loading rate resulted in an increase of shear strength of 8%–17%, depending on the braid angle.