Solid Mechanics Material Properties: Fatigue Module
These material property groups for material models in solid mechanics using the Fatigue Module (including their associated physical properties) can be added to models from the Material window.
Table 9-13: Elastoplastic and Fatigue Behavior Material Properties
Property Group and Property
Name/Variable
SI Unit
Elastoplastic material>Ramberg-Osgood
Cyclic hardening coefficient
K_ROcyclic
Pa
Cyclic hardening coefficient
n_ROcyclic
1
Fatigue Behavior>Energy-Based
Darveaux
Crack initiation energy coefficient
K1_Darveaux
1
Crack initiation energy exponent
k2_Darveaux
1
Crack propagation energy coefficient
K3_Darveaux
m
Crack propagation energy exponent
k4_Darveaux
1
Reference energy density
Wref_Darveaux
J/m3
Morrow
Fatigue energy coefficient
Wf_Morrow
J/m3
Fatigue energy exponent
m_Morrow
1
Fatigue Behavior>Fatigue Behavior>Approximate S-N Curve
Transition stress
sigmat
Pa
Transition life
Nt
1
Endurance life
Ne
1
Fatigue Behavior>General
Endurance limit
sigmae
Pa
Fatigue Behavior>Strain-Based
Coffin-Manson
 
 
Fatigue ductility coefficient
epsilonf_CM
1
Fatigue ductility exponent
c_CM
1
Shear fatigue ductility coefficient
gammaf_CM
1
Shear fatigue ductility exponent
cgamma_CM
1
Fatemi-Socie
 
 
Normal stress sensitivity coefficient
k_FS
1
Wang-Brown
 
 
Normal stress sensitivity coefficient
S_WB
1
Fatigue Behavior>Stress-Based
Basquin
 
 
Fatigue strength coefficient
sigmaf_Basquin
Pa
Fatigue strength exponent
b_Basquin
1
Shear fatigue strength coefficient
tauf_Basquin
Pa
Shear fatigue strength exponent
bgamma_Basquin
1
Findley
 
 
Normal stress sensitivity coefficient
k_Findley
1
Limit factor
f_Findley
Pa
Matake
 
 
Normal stress sensitivity coefficient
k_Matake
1
Limit factor
f_Matake
Pa
Normal Stress
 
 
Limit factor
f_NormalStress
Pa
DaNg Van
 
 
Hydrostatic stress sensitivity coefficient
a_DangVan
1
Limit factor
b_DangVan
Pa