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| 对LS-DYNA中混凝土HJC模型的探讨 | |
| 引用本文： | 常永奎,常凯,许超.对LS-DYNA中混凝土HJC模型的探讨[J].吉林建筑工程学院学报,2013,30(2):27-29. |
| 作者姓名： | 常永奎 常凯 许超 |
| 作者单位： | 1. 长春万旌房地产开发有限公司,长春,130012 2. 吉林建筑工程学院土木工程学院,长春,130118 3. 吉林建筑工程学院管理学院,长春,130118 |
| 摘 要： | 有限元动力分析软件LS-DYNA中的HJC混凝土模型（Holmquist-Johnson-Cook）,充分考虑了混凝土的应变效应、材料损伤,以及静水压力对屈服应力的影响.所以,近些年来在模拟冲击荷载和侵彻等方面得到了广泛应用;但对其在爆炸荷载作用下结构动力分析的能力却研究不足.本文介绍了HJC混凝土材料模型的基本原理及建立模型模拟真实实验,并将软件计算结果与实验数据进行了对比.结果表明,HJC混凝土模型能很好地模拟钢筋混凝土构件在爆炸荷载作用下的动力响应. |
| 关 键 词： | 混凝土HJC模型 数值模拟 有限元 |
The Discuss of Concrete HJC Model in LS-DYNA |
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| CHANG Yong-kui , CHANG Kai , XU Chao.The Discuss of Concrete HJC Model in LS-DYNA[J].Journal of Jilin Architectural and Civil Engineering,2013,30(2):27-29. | |
| Authors: | CHANG Yong-kui CHANG Kai XU Chao |
| Affiliation: | 1：Changchun Wanting Real Estate Development Co., L TD, Changchun, China 130012; 2： School of Civil Engineering, Jilin Institute of Architecture and Civil Engineering, Changchun, China 130118; 3： School of Administration, Jilin Institute of Architecture and Civil Engineering, Changchun, China 130118) |
| Abstract: | The dynamic finite element analysis software LS - DYNA HJC concrete model （ Holmquist - Johnson - Cook） to give full consideration to the effect of strain of the concrete, material damage and the hydrostatic pressure of the yield stress, so in is widely used in the simulation of the impact load and penetrationso is in recent years. But its dynamic analysis of structures under blast loading capacity is inadequate research. This paper first introduces the basic principles of the HJC concrete material model, and then create a model to simulate the real experiment, and the software calculates the results were compared reinforced concrete members HJC concrete model with experimental data. The results showed that the simulation of has a good dynamic response under blast loading |
| Keywords: | HJC model numerical simulation finite element |
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