calculates the magnitudes and directions of the principal stresses S1 and S2
Usage
sigma13(sigmaX, sigmaZ, tauXZ)
Arguments
- sigmaX
normal stress acting in the horizontal direction
- sigmaZ
normal stress acting in the vertical direction
- tauXZ
shear stress acting on the same plane as "sigmaX"
Value
A four-element list containing
"sigma1"
magnitude of major principal stress
"sigma3"
magnitude of minor principal stress
"theta1"
direction of major principal stress (degrees)
"theta3"
direction of minor principal stress (degrees)
Author
Kyle Elmy and Jim Kaklamanos
Examples
sigma13(sigmaX = 80, sigmaZ = 120, tauXZ = 20)
#> $sigma1
#> [1] 128.2843
#>
#> $sigma3
#> [1] 71.71573
#>
#> $theta1
#> [1] 22.5
#>
#> $theta3
#> [1] 112.5
#>