Concrete01 Material With Stuff in the Cracks
This command is used to construct a modified uniaxial Kent-Scott-Park concrete material object with degraded linear unloading/reloading stiffness according to the work of Karsan-Jirsa and no tensile strength. The modification is to model the effect of Stuff In The Cracks (SITC). The command is as follows:
|uniaxialMaterial Concrete01WithSITC $matTag $fpc $epsc0 $fpcu $epsU <$endStrainSITC>|
|$matTag||integer tag identifying material|
|$fpc||concrete compressive strength at 28 days (compression is negative)*|
|$epsc0||concrete strain at maximum strength*|
|$fpcu||concrete crushing strength *|
|$epsU||concrete strain at crushing strength*|
|$endStrainSITC||optional, default = 0.03|
- Compressive concrete parameters should be input as negative values.
- The initial slope for this model is (2*$fpc/$epsc0)
J.F. Stanton and H.D. McNiven, "The Development of a Mathematical Model to Predict the Flexural Response of Reinforced Concrete Beams to Cyclic Loads, Using System Identification", EERC Report Number 79/02, January 1979.
Code Developed by: Won Lee, Stanford