View source for Elastic-Perfectly Plastic Gap Material

{{CommandManualMenu}}

This command is used to construct an elastic perfectly-plastic gap uniaxial material object.


{| 
| style="background:lime; color:black; width:800px" | '''uniaxialMaterial ElasticPPGap $matTag $E $Fy $gap $eta <damage>'''
|}

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{|
|  style="width:150px" | '''$matTag ''' || integer tag identifying material
|-
|  '''$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.
|}


[[Image:ElasticPPGap.gif]]


EXAMPLE:

[[File: ElasticPPGap.tcl]]

<tcl>ElasticPPGap.tcl</tcl>

[[Image:ElasticPPGapPlotA.png]]
[[Image:ElasticPPGapPlotB.png]]

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Code Developed by: <span style="color:blue"> Kevin Mackie, University of Central Florida</span>