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Analytical and experimental studies on ballistic impact behavior of 2D woven fabric composites

DSpace at IIT Bombay

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Title Analytical and experimental studies on ballistic impact behavior of 2D woven fabric composites
 
Creator PANDYA, KS
KUMAR, CVS
NAIR, NS
PATIL, PS
NAIK, NK
 
Subject HIGH-VELOCITY IMPACT
MECHANICAL-BEHAVIOR
ENERGY-ABSORPTION
THICK COMPOSITES
ANALYTICAL-MODEL
PENETRATION
PERFORATION
PROJECTILES
FORMULATION
EPOXY
Ballistic impact
woven fabric composite
stress wave propagation
impact testing
shear plugging
conical deformation
 
Description A generalized analytical formulation is presented for the prediction of ballistic impact behavior of 2D woven fabric composite laminates impacted with a rigid cylindrical projectile. The formulation is valid for a wide range of laminate thicknesses. The formulation is based on stress wave propagation and energy balance between the projectile and the composite target. During the ballistic impact event, the energy lost by the projectile is absorbed by the target through various damage and energy absorbing mechanisms such as compression of the target directly below the projectile, compression in the region surrounding the impacted zone, shear plugging, stretching and tensile failure of yarns/layers in the region consisting of primary yarns, tensile deformation of yarns/layers in the region consisting of secondary yarns, conical deformation on the back face of the target, delamination, matrix cracking, and friction between the projectile and the target. The formulation presented considers both shear plugging and tensile failure during conical deformation. Solution procedure for the evaluation of ballistic impact performance is presented. Experimental validation is performed on the ballistic impact behavior of two types of composite specimens: 2D plain weave E-glass/epoxy and 2D 8H satin weave T300 carbon/epoxy. Typical results on ballistic limit velocity and energy absorbed by various mechanisms are presented.
 
Publisher SAGE PUBLICATIONS LTD
 
Date 2016-01-15T10:06:14Z
2016-01-15T10:06:14Z
2015
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF DAMAGE MECHANICS, 24(4)471-511
1056-7895
1530-7921
http://dx.doi.org/10.1177/1056789514531440
http://dspace.library.iitb.ac.in/jspui/handle/100/18327
 
Language en