Rosette Data Reduction

A calculator for

Principal Stresses & Strains

With strain measurements made with a delta rosette on homogeneous, linearly elastic, orthotropic materials.

Independent Variables
Modulus of Elasticity (psi, Pa, etc.),
Poisson's Ratio (nondimensional),
Measured Strains (microstrain), , ,

Dependent Variable
Principal Stresses (psi, Pa, etc.),
Direction^* (degrees),

Note
^* Direction from Grid 1 to the maximum principal stress axis:
if = and < , then == -45 degrees.
if = and > , then == +45 degrees.
if ==, then is indeterminate (equal biaxial strain).