| 基于3D-DIC方法研究内爆作用下金属圆柱壳体的动态变形特征 |
| |
| 引用本文： | 甘云丹,龙仁荣,张庆明,张少龙,梁浩哲,张凯,王浩.基于3D-DIC方法研究内爆作用下金属圆柱壳体的动态变形特征[J].北京理工大学学报,2016,36(S1):107-110. |
| |
| 作者姓名： | 甘云丹 龙仁荣 张庆明 张少龙 梁浩哲 张凯 王浩 |
| |
| 作者单位： | 北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081 |
| |
| 基金项目： | 国家自然科学基金资助项目（U1230130） |
| |
| 摘 要： | 针对爆炸容器动态变形的研究，传统方法是采用电阻应变片对某一点的变形进行测量，这种“点应变”测量不能得到结构动态变形的全场数据，并且爆炸产生的带电气体对应变片干扰较大.为克服电阻应变测量的不足，采用双目立体成像的原理对内爆炸载荷作用下的金属壳体动态变形进行测量.获得了直径210 mm、壁厚2.5 mm的金属圆柱壳体在不同TNT当量（20，60，80，100 g）的全场变形.分析壳体的动态变形，拟合了环向、轴向变形和挠度的经验公式，为金属圆柱壳体结构的抗爆设计提供理论依据.
|
| 关 键 词： | 内爆炸载荷 数字图像相关 动态变形 |
| 收稿时间： | 2016/3/26 0:00:00 |
Dynamic Deformation Characteristic of Metal Cylindrical Shell Subject to Internal Explosion Load Based on 3D-DIC Method |
| |
| GAN Yun-dan,LONG Ren-rong,ZHANG Qing-ming,ZHANG Shao-long,LIANG Hao-zhe,ZHANG Kai and WANG Hao.Dynamic Deformation Characteristic of Metal Cylindrical Shell Subject to Internal Explosion Load Based on 3D-DIC Method[J].Journal of Beijing Institute of Technology(Natural Science Edition),2016,36(S1):107-110. |
| |
| Authors: | GAN Yun-dan LONG Ren-rong ZHANG Qing-ming ZHANG Shao-long LIANG Hao-zhe ZHANG Kai and WANG Hao |
| |
| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | Resistance strain gauge named by "point strain measurement" is the traditional method for dynamic deformation measurement of explosive vessel. However, strain gauge will be greatly interfered by charged explosion gas and it is hard to get the whole field data in the case of dynamic loading. In order to overcome those disadvantages of resistance strain measurement, the principle of binocular stereo imaging was adopted on the dynamic deformation measurement of metal shell under internal explosive load was adopted. The whole field deformations of metal cylindrical shells with diameter of 210 mm and 2.5 mm wall thickness under different TNT equivalence (20, 60, 80, 100 g) were obtained. The dynamic deformation of the shell was analyzed. The fitting empirical formulas of the hoop, axial deformation and deflection were proposed, which provide a theoretical basis for antiknock performance design of the metal cylindrical shell structure. |
| |
| Keywords: | internal explosion load digital image correlation dynamic deformation |
|
| 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 |
|
