| A FINITE ELEMENT ANALYSIS OF THE LARGE PLASTIC DEFORMATION BEHAVIOR OF AMORPHOUS GLASSY CIRCULAR POLYMERIC BARS |
| |
| 作者姓名： | Hu Ping Na Jingxin |
| |
| 作者单位： | Hu Ping Na Jingxin (Department of Applied Mechanics，Jilin University of Technology，Changchun 130025，China)Liu Xiaoyu (Department of Mechanical Engineering，Jilin University of Technology，Changchun 130025，China) |
| |
| 摘 要： | The BPA eight chain molecular network model is introduced into the finite element for-mulation of elastic-plastic large deformation.And then,the tensile deformation localization develop-ment of the amorphous glassy circular polymeric bars(such as polycarbonates)is numerically simulat-ed.The simulated results are compared with experimental ones,and very good consistence betweennumerical simulation and experiment is obtained,which shows the efficiency of the finite elementanalysis.Finally,the influences of the microstructure parameter S_ on tensile neck-propagation andtriaxial stress effect are studied.
|
| 收稿时间： | 22 October 1996 |
A FINITE ELEMENT ANALYSIS OF THE LARGE PLASTIC DEFORMATION BEHAVIOR OF AMORPHOUS GLASSY CIRCULAR POLYMERIC BARS |
| |
| Hu Ping Na Jingxin.A FINITE ELEMENT ANALYSIS OF THE LARGE PLASTIC DEFORMATION BEHAVIOR OF AMORPHOUS GLASSY CIRCULAR POLYMERIC BARS[J].Acta Mechanica Solida Sinica,1997,10(2):138-147. |
| |
| Authors: | Hu Ping Na Jingxin |
| |
| Institution: | (1) Department of Applied Mechanics, Jilin University of Technology, 130025 Changchun, China;(2) Department of Mechanical Engineering, Jilin University of Technology, 130025 Changchun, China |
| |
| Abstract: | The BPA eight chain molecular network model is introduced into the finite element for- mulation of elastic-plastic large deformation.And then,the tensile deformation localization develop- ment of the amorphous glassy circular polymeric bars(such as polycarbonates)is numerically simulat- ed.The simulated results are compared with experimental ones,and very good consistence between numerical simulation and experiment is obtained,which shows the efficiency of the finite element analysis.Finally,the influences of the microstructure parameter S_ on tensile neck-propagation and triaxial stress effect are studied. |
| |
| Keywords: | BPA molecular network model finite element formulation amorphous glassy circular polymeric bars deformation localization development |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
