4.13.1.7. RambergOsgoodSteel¶
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uniaxialMaterial
('RambergOsgoodSteel', matTag, fy, E0, a, n) This command is used to construct a Ramberg-Osgood steel material object.
matTag
(int)integer tag identifying material fy
(float)Yield strength E0
(float)initial elastic tangent a
(float)“yield offset” and the Commonly used value for a is 0.002 n
(float)Parameters to control the transition from elastic to plastic branches. And controls the hardening of the material by increasing the “n” hardening ratio will be decreased. Commonly used values for n are ~5 or greater.
See also