Energy absorption of three-dimensional braided composites under impact punch shear loading. Issue 19 (November 2016)

• Record Type: Journal Article
• Authors: Li, Yuanyuan; Gu, Bohong; Sun, Baozhong
• Is Part Of: Textile research journal. Volume 86:Issue 19(2016)
• Page Start: 2080
• Page End: 2095
• Publication Date: 2016-11
• Subjects: three-dimensional braided composite -- energy absorption -- high strain rate -- punch shear -- finite element analysis; Textile industry -- Periodicals; Textile fabrics -- Periodicals; Textile research -- Periodicals; Textiles et tissus -- Industrie et commerce -- Périodiques; Textiles et tissus -- Périodiques; Textiles et tissus -- Recherche -- Périodiques; Electronic journals; 677.005
• DOI: 10.1177/0040517515621127
• Languages: English
• ISSNs: 0040-5175

Abstract

Energy absorptions of a three-dimensional braided composite panel under impact punch shear loading were investigated in testing and numerical calculation. The impact punch shear behaviors were tested on a split Hopkinson pressure bar system. A finite element model was established to numerically characterize the shear behaviors. From both the approaches, we found that the energy absorption is sensitive to strain rate, braided angle and thickness. Based on the numerical calculation and scanning electronic microscopy observation, the energy absorption mechanisms are fiber breakage and pullout, resin debris and panel deformation.