Birfringent Coatings Stress and Strain Sensitivity

1. Birfringent Coatings
Stress and Strain Sensitivity
Davalsab.M.L
R15MDD10
M.Tech (MDD)
Daval.techno@gmail.com

3.  Bire-fringent coating that produces a photo-elastic fringe pattern related
to the coating stresses.
 Brittle coating that fails by cracking when the coating stresses exceed
some threshold value.

5. • Birefringence
o
e Transparent
material
Different
refractive
indices
i
t
i
t
t
i
ttii
n
n
nn







sin
sin
sinsin
eo nn 
nl
V


2
Phase Angle is
Optic Mechanics :” the refractive indices are depended on the existing stress state in transparent material”

11. coating 2D investigation 3D investigation
Residual Stress in Glass
Non-contact optical method for determining stresses and
load paths in components or structures