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Home - Stress Analysis Strain Gages - Calculators - Rosette Data Reduction (calculator 1): Rosettes

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),

* 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).


Elastic Modulus:

Poisson's Ratio:

Measured Strains

Grid 1:

Grid 2:

Grid 3:

Principal Stresses