AxialSpHD MaterialΒΆ

uniaxialMaterial('AxialSpHD', matTag, sce, fty, fcy, <bte, bty, bth, bcy, fcr, ath>)

This command is used to construct a uniaxial AxialSpHD material object. This material model produces axial stress-strain curve of elastomeric bearings including hardening behavior.

matTag (int) integer tag identifying material
sce (float) compressive modulus
fty fcy (float) yield stress under tension (fty) and compression (fcy) (see note 1)
bte bty bth bcy (float) reduction rate for tensile elastic range (bte), tensile yielding (bty), tensile hardening ( bth) and compressive yielding (bcy) (see note 1)
fcr (float) target point stress (see note 1)
ath (float) hardening strain ratio to yield strain


  1. Input parameters are required to satisfy followings.

    fcy < 0.0 < fty

    0.0 <= bty < bth < bte <= 1.0

    0.0 <= bcy <= 1.0

    fcy <= fcr <= 0.0

    1.0 <= ath

See also