|標題：Progressive Failure Simulation of Security Cable Barriers|
|作品名稱||Progressive Failure Simulation of Security Cable Barriers|
|著者||Tuan, Christopher Y.; Sarmah, Ratul D.; Tuan, Alexander Y.; Kao, Chin-Sheng; Li, Q.S.|
|出版者||Berlin: Walter de Gruyter GmbH & Co. KG|
|著錄名稱、卷期、頁數||International Journal of Nonlinear Sciences and Numerical Simulation 11(9), pp.755-775|
|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.
|關鍵字||vehicular crash, security cable barriers, progressive failure, simulation|