| 混凝土SHPB束杆试验的数值模拟 |
| |
| 引用本文： | 陈博斐,邱欣,王甲,陈江瑛.混凝土SHPB束杆试验的数值模拟[J].北京理工大学学报,2016,36(S1):183-187. |
| |
| 作者姓名： | 陈博斐 邱欣 王甲 陈江瑛 |
| |
| 作者单位： | 宁波大学 机械工程与力学学院, 浙江, 宁波 315211,宁波大学 机械工程与力学学院, 浙江, 宁波 315211,宁波大学 机械工程与力学学院, 浙江, 宁波 315211,宁波大学 机械工程与力学学院, 浙江, 宁波 315211 |
| |
| 基金项目： | 国家自然科学基金资助项目（11272165，11572163） |
| |
| 摘 要： | 利用Ansys/Ls-dyna有限元软件对混凝土SHPB束杆试验进行了数值模拟研究.获得了砂浆混凝土的部分HJC本构模型参数，在此基础上模拟了试验过程中的应力波信号、试件的应力应变曲线和破坏形貌变化过程，模拟结果与实测结果有良好的吻合性.研究表明，获得的HJC模型参数是可信的，并分析了模拟冲击过程中试件内部应力、应变和破坏形貌的变化.
|
| 关 键 词： | 混凝土 SHPB束杆 数值模拟 本构模型参数 |
| 收稿时间： | 2016/3/26 0:00:00 |
Numerical Simulation of Bundled Hopkinson Pressure Bars Test of Concrete |
| |
| CHEN Bo-fei,QIU Xin,WANG Jia and CHEN Jiang-ying.Numerical Simulation of Bundled Hopkinson Pressure Bars Test of Concrete[J].Journal of Beijing Institute of Technology(Natural Science Edition),2016,36(S1):183-187. |
| |
| Authors: | CHEN Bo-fei QIU Xin WANG Jia and CHEN Jiang-ying |
| |
| Institution: | Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China,Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China,Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China and Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, Zhejiang 315211, China |
| |
| Abstract: | The numerical simulation of the bundled Hopkinson pressure bars tests of concrete was studied using the finite element software of Ansys/Ls-dyna in the present paper. The partial parameters of HJC constitutive model of mortar concrete were obtained, and the stress wave signal, the stress-strain curve of the specimen and the process of specimen''s damage morphology changes in the simulated impact process were derived. The simulation results were in good agreement with experimental ones. It shows that the obtained parameters of HJC model can be trusted. Distribution of internal stress, strain and the changes of damage morphology of specimen under simulated impact process were also analyzed. |
| |
| Keywords: | concrete SHPB bundled bars numerical simulation constitutive model parameters |
|
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
| 点击此处可从《北京理工大学学报》下载免费的PDF全文 |
|
