4.14.5.23. Engineered Cementitious Composites Material¶

uniaxialMaterial('ECC01', matTag, sigt0, epst0, sigt1, epst1, epst2, sigc0, epsc0, epsc1, alphaT1, alphaT2, alphaC, alphaCU, betaT, betaC)

This command is used to construct a uniaxial Engineered Cementitious Composites (ECC)material object based on the ECC material model of Han, et al. (see references). Reloading in tension and compression is linear.

`matTag` (int)	integer tag identifying material
`sigt0` (float)	tensile cracking stress
`epst0` (float)	strain at tensile cracking stress
`sigt1` (float)	peak tensile stress
`epst1` (float)	strain at peak tensile stress
`epst2` (float)	ultimate tensile strain
`sigc0` (float)	compressive strength (see NOTES)
`epsc0` (float)	strain at compressive strength (see NOTES)
`epsc1` (float)	ultimate compressive strain (see NOTES)
`alphaT1` (float)	exponent of the unloading curve in tensile strain hardening region
`alphaT2` (float)	exponent of the unloading curve in tensile softening region
`alphaC` (float)	exponent of the unloading curve in the compressive softening
`alphaCU` (float)	exponent of the compressive softening curve (use 1 for linear softening)
`betaT` (float)	parameter to determine permanent strain in tension
`betaC` (float)	parameter to determine permanent strain in compression