|
|||||
|
|
In-plane strains measurement by using the electronic speckle pattern interferometry |
|
| Authors: | Koung-Suk Kim Hyun-Chul Jung Ki-Soo Kang Jong-Kook Lee Soon-Suck Jang Chung-Ki Hong |
| Affiliation: | 1. Department of Mechanical design Engineering, Chosun University, 501-759, Kwangju 2. Department of Materials Engineering, Chosun University, 501-759, Kwangju 3. Department of Control and Measurement Engineering, Chosun University, 501-759, Kwangju 4. Department of Physics, Pohang Institute of Science and Technology, 790-784, Pohang, Korea |
| Abstract: | Two-dimensional in-plane displacements and strains are measured using an electronic speckle pattern interferometry (ESPI) system based on the dual beam speckle interferometric method. Different types of specimens are used: a flat plate, a cracked-plate, and plate with a central hole of 12 mm diameter. Two-dimensional fringes obtained from real-time images are analyzed by an image analyser. The values of in-plane strains obtained by the ESPI technique show high accuracy compared with those measured by strain gages. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |