uniaxial
UniaxialMaterial
object library.
A UniaxialMaterial
object typically represents a pair of work conjugate scalars such as axial stress/strain, moment/cuvature, or force/deformation.
ElasticSpring(name,
elastic_modulus,
damp_tangent,
negative_modulus,
shear_modulus,
**kwds)
name Tag
E Num
Young’s modulus of elasticity eta Num
damping tangent Eneg Num
G Num
Steel02(name, Fy, E0, b, a, **kwds)
name Tag
Fy Num
yield strength E0 Num
initial elastic tangent b Num
strain-hardening ratio (ratio between post-yield tangent and initial elastic tangent a [a1,a2,a3,a4]
isotropic hardening parameters
a1 Num
increase of compression yield envelope as proportion of yield strength after a plastic strain of a2∗(Fy/E0)
a2 Num
see explanation under a1
.a3 Num
increase of tension yield envelope as proportion of yield strength after a plastic strain of a4∗(Fy/E0)
a4 Num
see explanation under a3
.
Concrete02(name, fpc, epsc0, fpcu, epsU, lamda, ft, Ets, **kwds)
name Tag
integer tag identifying material fpc Num
concrete compressive strength at 28 days (compression is negative) epsc0 Num
concrete strain at maximum strength fpcu Num
concrete crushing strength epsU Num
concrete strain at crushing strength lamda Num
ratio between unloading slope at epscu
and initial slopeft Num
tensile strength Ets Num
tension softening stiffness (absolute value) (slope of the linear tension softening branch)