Page 158 - Biaxial Multiaxial Fatigue and Fracture

The Influence of Static Mean Stresses Applied Normal to the Maximum Shear Planes in ___ 143

Appendix : NOMENCLATURE

BHN Brinell hardness number
E Young's modulus
E Local strain
f;k Constant for Findley's parameter
k Constant for Fatemi and Socie parameter
Y Engineering shear strain
P Parameter
Local stress
Yield stress

Shear stress ratio, Tm$mx
S Stress
S* Empirical constant in Modified Kandil, Brown and Miller parameter
z Local shear stress
h Ratio between T, and oa

SUBSCRIPTS, SUPERSCRIPTS AND OPERATORS

1, 2, 3 Orthogonal principal stress/strain coordinates
axial Value of variable in axial direction
HOOP Value of variable in hoop direction
int Value of variable when crack faces are interference free
mar Maximum value of the variable during the load cycle
mean Value of static variable normal to the maximum shear planes
n Value of variable normal to the crack plane
no Value of static variable perpendicular to the maximum shear strain
amplitude
static mean Value of static variable normal to the maximum shear planes

A Range of variable during the loading cycle