Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/132155
Title: DYNAMIC BEHAVIOR OF HIGH-STRENGTH FABRIC
Authors: EMMANUEL, ERIC, AUGUSTIN TAPIE
Keywords: aramid, high-strength fabric, projectile impact, dynamic behaviour, finite element analysis
Issue Date: 30-Jun-2016
Source: EMMANUEL, ERIC, AUGUSTIN TAPIE (2016-06-30). DYNAMIC BEHAVIOR OF HIGH-STRENGTH FABRIC. ScholarBank@NUS Repository.
Abstract: Flexible high-strength woven fabrics are used for the reinforcement and protection of structures – aircraft engines, bullet-resistant vests, fragment barriers, etc. This work aims at understanding the response of Twaron® fabric to impact penetration by a spherical projectile. The mechanical behaviour of constituent yarns at various strain rates is determined, and the effect of weaving on yarn properties assessed. The fabric inter-yarn frictional characteristics are studied via newly-proposed yarn pull-out tests; a numerical model incorporating the fabric characteristics is developed in parallel to simulate the experiments. An experimental study of the influence of pre-tension and projectile impact obliquity on fabric resistance to projectile perforation is undertaken; the fabric response to projectile impact is also simulated, to identify the deformation mechanisms affecting the fabric performance. The evolution of energy absorbed by the fabric with projectile velocity was also examined, and the effect of pre-tension on the fabric energy absorption capacity assessed.
URI: http://scholarbank.nus.edu.sg/handle/10635/132155
Appears in Collections:Ph.D Theses (Open)

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