Simulation of stress wave attenuation in plain weave fabric composites during in-plane ballistic impact. (15th January 2017)

• Record Type: Journal Article
• Authors: Pandya, Kedar S.; Kulkarni, Mandar D.; Warman, Anirudh; Naik, N.K.
• Is Part Of: Composite structures. Volume 160(2017)
• Page Start: 748
• Page End: 757
• Publication Date: 2017-01-15
• Subjects: In-plane impact -- Plain weave fabric composite -- Stress wave attenuation; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2016.10.115
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: An analytical method is presented for the simulation of longitudinal stress wave attenuation in typical plain weave fabric composites made of E-glass/epoxy and T300 carbon/epoxy under in-plane ballistic impact. The stress wave propagation/attenuation simulation studies are carried out for the case of in-plane impact of projectiles on composite beam targets. Geometrical modeling of plain weave fabric composites and an algorithm for stress wave propagation/attenuation are presented. Studies are carried out for both free edge and rigid boundary conditions for different beams. Based on the analytical simulation, for typical plain weave E-glass/epoxy composite beams studied, it is observed that the stress intensity is about 5% of the incident value when the longitudinal stress wave reaches a distance of 110 mm from the point of in-plane impact at the representative section.