New Low-Modulus Photoelastic Material
A new low-modulus material which could be used for photoelastic, grid and moire methods of stress analysis has been developed using polyurethane prepolymer, dried castor oil and a catalyst. By varying the percentage of dried castor oil, it is possible to get materials having Young's modulus between 6 kg/cm2 and 17kg/cm2 and 17kg/cm2. The method of casting transparent, bubble free, constant thickness sheets is described. The material may find extensive application in two dimensional stress analysis.
K. Chandrashekhara and K. R. Murugappan, "New Low-Modulus Photoelastic Material," Journal of Structural Engineering (Madras), Structural Engineering Research Centre, Jan 1989.
Mechanical and Aerospace Engineering
Article - Journal
© 1989 Structural Engineering Research Centre, All rights reserved.