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| 实时三维数字图像相关方法在材料力学教学中的应用1) | |
| 引用本文： | 邵新星, 陈捷, 马沁巍, 何小元. 实时三维数字图像相关方法在材料力学教学中的应用1)[J]. 力学与实践, 2021, 43(5): 776-782. doi: 10.6052/1000-0879-20-465 |
| 作者姓名： | 邵新星 陈捷 马沁巍 何小元 |
| 作者单位： | *东南大学土木工程学院,南京 210096; †北京理工大学宇航学院,北京 100081 |
| 摘 要： | 实验教学是理工科院校极为重要的教学环节,为使学生深刻理解理论知识,将现代光测力学方法用于实验教学具有重要意义。本文以铝合金拉伸实验和梁模型的三点弯实验为例,采用自主研制的实时三维数字图像相关方法进行教学内容展示。该方法可实时测量物体表面的三维形貌及变形,更直观地揭示材料力学中的变形规律和力学原理。实践表明,课堂演示易于调动学生的积极性,将理论与实验相结合,有助于增强学生分析问题的能力,相比传统电测方法具有无可比拟的优势。 |
| 关 键 词： | 实时三维数字图像相关 拉伸实验 三点弯 实验教学 全场测量 |
| 收稿时间： | 2020-11-03 |
| 修稿时间： | 2021-01-14 |
APPLICATION OF REAL-TIME 3D-DIC METHOD IN TEACHING MATERIAL MECHANICS1) |
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| SHAO Xinxing, CHEN Jie, MA Qinwei, HE Xiaoyuan. APPLICATION OF REAL-TIME 3D-DIC METHOD IN TEACHING MATERIAL MECHANICS1)[J]. Mechanics in Engineering, 2021, 43(5): 776-782. doi: 10.6052/1000-0879-20-465 | |
| Authors: | SHAO Xinxing CHEN Jie MA Qinwei HE Xiaoyuan |
| Affiliation: | *School of Civil Engineering, Southeast University, Nanjing 210096, China; †School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China |
| Abstract: | Experimental teaching is a crucial part of education in science and engineering colleges. To improve students understanding of theoretical knowledge substantially, it is of great significance in applying modern optical mechanics methods in experimental teaching. As two examples, this article carried out aluminum alloy tensile experiment and three-point bending experiment of beam model, using self-developed real-time three-dimensional (3D) digital image related methods to display teaching contents. This method can measure the three-dimensional shape and deformation of the surface of an object in real time, and intuitively reveal the deformation laws and mechanics principles in material mechanics. Practice shows that classroom presentations mobilize students' enthusiasm, and the combination of theory and experiment increase students' ability in analyzing problems. Compared with traditional electrical measurement methods, it has incomparable advantages. |
| Keywords: | real-time three-dimensional digital image related methods tensile experiment three-point bending experimental teaching full-field measurement |
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