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    题名: Progressive Failure Simulation of Security Cable Barriers
    作者: Tuan, Christopher Y.;Sarmah, Ratul D.;Tuan, Alexander Y.;Kao, Chin-Sheng;Li, Q.S.
    贡献者: 淡江大學土木工程學系
    关键词: vehicular crash, security cable barriers, progressive failure, simulation
    日期: 2010-09
    上传时间: 2011-09-30 10:42:26 (UTC+8)
    出版者: Berlin: Walter de Gruyter GmbH & Co. KG
    摘要: Perimeter security cable barriers are widely used by various agencies all over the world to defeat
    threat vehicle penetration. New barrier designs require crash test validation prior to implementation. Full-scale vehicular crash tests are costly, whereas designs via finite element simulations are time consuming and require specialized skills. Based on full-scale crash tests, an innovative and simple algorithm has been developed to model the progressive failure of security cable barriers. A multi-body approach based on the first principles of physics was developed to substantially reduce computer runtime. The solution algorithm uses a large number of small time steps. Nonlinear vehicle and cable forces and deformations are calculated based on compatibility conditions. This methodology has been validated against three full-scale crash tests. This cable barrier model, displaying simulation results graphically in a time series, provides realistic response parameters of a security cable barrier design in less than 10 minutes of runtime with reasonable accuracy.
    關聯: International Journal of Nonlinear Sciences and Numerical Simulation 11(9), pp.755-775
    DOI: 10.1515/IJNSNS.2010.11.9.755
    显示于类别:[土木工程學系暨研究所] 期刊論文

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