In general, it is required mechanical properties and strength tests to use the material in engineering applications. The material fringe values of photoelastic materials vary with the supplier, the batch of resin, temperature and age, it is necessary to calibrate each of sheet of photoelastic material at the time of the test. In this paper, we perform tensile tests and calibrations tests for photoelastic stress fringe constant in order to obtain the mechanical properties of materials and photoelastic material fringe constants of PMMA and PSM-1. From this tests, the tensile strength of PMMA and PSM-1 were 100.5 MPa and 71.5 MPa, respectively. Also, the measured material stress fringe constants of PMMA and PSM-1 were 13.33 N/mm and 6.91 N/mm, respectively.

• 백태현(Member, Kunsan National University) | Tae-Hyun Baek Corresponding Author
• 고승기(Kunsan National University) | Seung-Kee Koh