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Control Number311487
Date and Time of Latest Transaction20150706093117.AM
General Information150706s |||||||||b ||00|||
Cataloging SourceSTII-DOST
Local Call NumberScienceDirect
Main Entry - Personal NameChian-Feng Yen
 Cheeseman, Bryan A.
 Swneson, Daniel
 Yuyang Miao
 Youqi Wang
 LaMaltina, Bruce
Title StatementDigital element approach for simulating impact and penetration of textiles by Youqi Wang and 5 others
Physical Descriptionpages 552-560 computer file; text; 1,157kb
Summary, Etc.A micro-scale computational tool, based upon an explicit digital element method (DEM), has been developed for numerical simulation of ballistic impact and penetration of textile fabrics. In this approach, each yarn is digitized as an assembly of digital fibers. Each digital fiber is further digitized into a short digital rod element chain connected by frictionless pins (nodes). A search is conducted to find contacts between adjacent digital fibers. If a contact is detected, compressive and frictional forces between fibers will be determined, based upon contact stiffness and friction coefficient. Nodal forces are calculated for each time step. Nodal displacements are determined using an explicit procedure. Because the digital element approach operates on a sub-yarn micro-scale, one can determine textile penetration resistance based upon sub-yarn scale properties, such as inter-fiber compression, friction, and fiber strength. Research presented in this paper includes three parts. First, the explicit digital element algorithm used in dynamic simulation is explained. Second, the approach is used to generate 2-D woven fabric micro-geometries and to simulate ballistic penetration processes. Third, numerical results are compared to high resolution experimental impact and ballistic test data
Subject Added Entry - Topical TermEngineering
 Textile industry
 Engineering Services
 Engineering and manufacturing industries
LocationDOST STII ScienceDirect NONPRINTS NP 14-15538 1 14-15538 Online/Download 2012-01-12
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Department of Science and Technology
Science and Technology Information InstituteScienceDirect
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