: Eealisel eae Cen 
a 
i) 
MODEL 6 
(INELASTIC 
FAILURE 
DESIGN) 
MODEL 7A 
(ELASTIC 
FAILURE 
DESIGN) 
STRESS IN KSI 
> 
—) 
es 
(INELASTIC FAILURE 
DESIGN) 
MOUELS 4A, 4A REVISED, ee 
ICR, AND 1CR REVISED 
0 0.002 0.004 0.006 0.008 0.010 0 0.002 0.004 0.006 0.008 0.010 0 0.002 0.004 0.006 0.008 0.010 
STRAIN IN IN/IN 
Figure 1 - Typical Compressive Stress-Strain Curves for Material (STS-Steel) 
Used in Machined Steel. Models 
90 
2 
z= 
B 80 
Ww 
oc 
Be 
MODELS 4A, 4A REVISED, 
70 MODEL 6 of ICR, AND ICR REVISED 
ieee ij me 
60 
1.0 0.8 0.6 0.4 0.2 1.0 0.8 0.6 0.4 0.2 0 
(SECANT MODULUS x TANGENT MODULUS)!/2 
YOUNGS MODULUS 
Figure 2 - Representative Material Characteristics 
10 
