Elastic-Perfectly Plastic Gap
This command is used to construct an elastic perfectly-plastic gap uniaxial material object.
uniaxialMaterial ElasticPPGap $matTag $E $Fy $gap
< $eta > < damage >
matTag
|
integer tag identifying material |
E
|
tangent |
Fy
|
stress or force at which material reaches plastic state |
gap
|
initial gap (strain or deformation) |
eta
|
hardening ratio (=Eh/E), which can be negative |
damage
|
an optional string to specify whether to accumulate damage or not in the material. With the default string, “noDamage” the gap material will re-center on load reversal. If the string “damage” is provided this recentering will not occur and gap will grow. |

Examples
<tcl>ElasticPPGap.tcl</tcl>
Code Developed by: Kevin Mackie, University of Central Florida