4.14.5.24. SelfCentering MaterialΒΆ
- uniaxialMaterial('SelfCentering', matTag, k1, k2, sigAct, beta, epsSlip=0, epsBear=0, rBear=k1)
This command is used to construct a uniaxial self-centering (flag-shaped) material object with optional non-recoverable slip behaviour and an optional stiffness increase at high strains (bearing behaviour).
matTag
(int)integer tag identifying material
k1
(float)Initial Stiffness
k2
(float)Post-Activation Stiffness (0<
k2``< ``k1
)sigAct
(float)Forward Activation Stress/Force
beta
(float)Ratio of Forward to Reverse Activation Stress/Force
epsSlip
(float)slip Strain/Deformation (if
epsSlip
= 0, there will be no slippage)epsBear
(float)Bearing Strain/Deformation (if
epsBear
= 0, there will be no bearing)rBear
(float)Ratio of Bearing Stiffness to Initial Stiffness
k1
See also