Bidirectional Section: Difference between revisions
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(Created page with '{{CommandManualMenu}} This command allows the user to construct a Bidirectional section, which is a stress-resultant plasticity model of two coupled forces. The yield surface i...') |
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| '''section Bidirectional $secTag $E $Fy $Hiso $Hkin | | '''section Bidirectional $secTag $E $Fy $Hiso $Hkin''' | ||
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Revision as of 21:26, 14 September 2012
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This command allows the user to construct a Bidirectional section, which is a stress-resultant plasticity model of two coupled forces. The yield surface is circular and there is combined isotropic and kinematic hardening.
| section Bidirectional $secTag $E $Fy $Hiso $Hkin |
| $secTag | unique section tag |
| $E | elastic modulus |
| $Fy | yield force |
| $Hiso | isotropic hardening modulus |
| $Hkin | kinematic hardening modulus |
NOTES:
- The bidirectional section is a suitable base isolator model and should be used in conjunction with a ZeroLengthSection element to this end.
- The implementation is a generalization of the uniaxial return map algorithm for rate independent plasticity (page 45, Simo and Hughes, 1998)
Code Developed by: Michael H. Scott, Oregon State University