Bilinear steel model with isotropic strain hardening- stl_bl2

This is a uniaxial bilinear stress-strain model characterized by a linear kinematic hardening rule and an optional feature of isotropic hardening which is described by a non-linear rule. Users have to assign the mean value of steel strength and the mean value minus the standard deviation or the characteristic value in order to describe the mechanical characteristics of the existing or the new material respectively.

Modulus of elasticity - Es
The default value is 200 GPa

Yield strength - fy
The default value is 500 MPa

Strain hardening ratio -
The default value is 0.005

Isotropic Hardening in Compression Parameter - Α1
The default value is 0.1

Isotropic Hardening in Compression Parameter - A2
The default value is 7

Isotropic Hardening in Tension Parameter - A3
The default value is 0.1

Isotropic Hardening in Tension Parameter - A4
The default value is 7

Fracture / Buckling Strain -
The default value is 0.1

Specific Weight -
The default Value is 78.00 kN/m3