Page 268 - Marine Structural Design
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244 Par! II Ultimate Strength
f=O
Figure A.6 Flow Rule
01 Load
surface
Load surface
IO' 0
2
w
/
Inihal yield surface
Kinematic
Hardening
Figure A.7 Kinematic Hardening Rule
Figure A.7
A
&
Figure A.8 Uni-Axial Stress and Strain Relation Based on Kinematic
Hardening Rule.
Kinematic Hardening Rule
In the kinematic hardening rule, although the size of yield surface does not change due to the
hardening process, the position of its center moves as shown in Figure A.7. The relationship
between stress and strain for a uniaxial stress case is shown in Figure A.8. From the relation
-
-- -
of YY' = AC, BC <OY , the Bauschinger's effect may be qualitatively expressed in the figure.
