Reference Guide

5-56 Equation Reference
Stress Analysis (14)
Variable
Description
δ
Elongation
∈
Normal strain
γ
Shear strain
φ
Angle of twist
σ
Normal stress
σ 1
Maximum principal normal stress
σ 2
Minimum principal normal stress
σ avg
Normal stress on place of maximum shear stress
σ x
Normal stress in x direction
σ x1
Normal stress in rotated-x direction
σ y
Normal stress in y direction
σ y1
Normal stress in rotated-y direction
τ
Shear stress
τ max
Maximum shear stress
τ x1y1
Rotated shear stress
τ xy
Shear stress
θ
Rotation angle
θ p1
Angle to plane of maximum principal normal stress
θ p2
Angle to plane of minimum principal normal stress
θ s
Angle to plane of maximum shear stress
A
Area
E
Modulus of elasticity
G
Shear modulus of elasticity
J
Polar moment of inertia
L
Length
P
Load
r
Radius
T
Torque
Reference: 2.