| ANALYTICAL EVALUATION OF PERMANENT DEFLECTION OF A THIN CIRCULAR PLATE STRUCK NORMALLY AT ITS CENTER BY A PROJECTILE |
| |
| 作者姓名： | Chen Liebin Yang Jialing |
| |
| 作者单位： | Solid Mechanics Research Center，Beijing University of Aeronautics and Astronautics，Beijing 100083，China |
| |
| 基金项目： | Project supported by the National Natural Sciences Foundation of China(No.10532020)，the Engineering Research Institute,Peking University(ERIPKU)(No.204038). |
| |
| 摘 要： | The permanent deflection of a thin circular plate struck normally at its center by a projectile is studied by an approximate theoretical analysis,FEM simulation and experiment.The plate made of rate sensitive and strain-hardening material undergoes serious local deformation but is not perforated during the impact.The theoretical analysis is based on an energy approach, in which the Cowper-Symonds equation is used for the consideration of strain rate sensitive effects and the parameters involved are determined with the aid of experimental data.The maximum permanent deflections predicted by the theoretical model are compared with those of FEM sim- ulation and published papers obtained both by theory and experiment,and good agreement is achieved for a wide range of thickness of the plates and initial impact velocities.
|
| 关 键 词： | 撞击 感光应变速度 有限挠度 薄圆形板 |
| 收稿时间： | 8 December 2006 |
| 修稿时间： | 2006-12-082007-03-20 |
ANALYTICAL EVALUATION OF PERMANENT DEFLECTION OF A THIN CIRCULAR PLATE STRUCK NORMALLY AT ITS CENTER BY A PROJECTILE |
| |
| Chen Liebin Yang Jialing.ANALYTICAL EVALUATION OF PERMANENT DEFLECTION OF A THIN CIRCULAR PLATE STRUCK NORMALLY AT ITS CENTER BY A PROJECTILE[J].Acta Mechanica Solida Sinica,2007,20(2):117-122. |
| |
| Authors: | Chen Liebin Yang Jialing |
| |
| Institution: | 1. Department of Infrastructure Engineering, The University of Melbourne, Victoria 3010, Australia;2. Department of Architecture, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;1. School of Automotive Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran;2. Mechanical Engineering Department, Iran University of Science and Technology, Tehran 16846-13114, Iran;1. Department of Infrastructure Engineering, The University of Melbourne, Victoria 3010, Australia;2. Department of Architecture, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia |
| |
| Abstract: | The permanent deflection of a thin circular plate struck normally at its center by a projectile is studied by an approximate theoretical analysis,FEM simulation and experiment.The plate made of rate sensitive and strain-hardening material undergoes serious local deformation but is not perforated during the impact.The theoretical analysis is based on an energy approach, in which the Cowper-Symonds equation is used for the consideration of strain rate sensitive effects and the parameters involved are determined with the aid of experimental data.The maximum permanent deflections predicted by the theoretical model are compared with those of FEM sim- ulation and published papers obtained both by theory and experiment,and good agreement is achieved for a wide range of thickness of the plates and initial impact velocities. |
| |
| Keywords: | thin circular plate finite deflection impact strain rate sensitive strain-hardening |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
