MultiLinear Material: Difference between revisions

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(Created page with '{{CommandManualMenu}} This command is used to construct a uniaxial multilinear material object. {| | style="background:limegreen; color:black; width:800px" | '''uniaxialMater...')
 
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{|  
{|  
| style="background:limegreen; color:black; width:800px" | '''uniaxialMaterial MultiLinear $matTag $u1 $f1 $u2 $f2 $u3 $f3 $u4 $f4 $u5 $f5'''
| style="background:limegreen; color:black; width:800px" | '''uniaxialMaterial MultiLinear $matTag $u1 $f1 $u2 $f2 $u3 $f3 $u4 $f4 ...'''
|}
|}


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|  style="width:150px" | '''$matTag ''' || integer tag identifying material
|  style="width:150px" | '''$matTag ''' || integer tag identifying material
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|-
|  '''$u1 ''' || yield strength
|  '''$u1 $f1 ''' || strain and stress (or deformation & force) at first point of the envelope
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|-
|  '''$f1 ''' || initial elastic tangent
|  '''$u2 $f2 ''' || strain and stress (or deformation & force) at second point of the envelope
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|  '''$u2 ''' || strain-hardening ratio (ratio between post-yield tangent and initial elastic tangent)
|  '''$u3 $f3 ''' || strain and stress (or deformation & force) at third point of the envelope
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|-
|  '''$f2''' || isotropic hardening parameter, increase of compression yield envelope as proportion of yield strength after a plastic strain of $a2*($Fy/E0). (optional)
|  '''$u4 $f4 ''' || strain and stress (or deformation & force) at fourth point of the envelope
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|  '''$u3''' || isotropic hardening parameter (see explanation under $a1). (optional).
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|  '''$f3''' || isotropic hardening parameter, increase of tension yield envelope as proportion of yield strength after a plastic strain of $a4*($Fy/E0). (optional)
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|  '''$u4''' || isotropic hardening parameter (see explanation under $a3). (optional)
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[[Image:Steel01.gif]]
[[Image:MultiLinear Material2.png]]


MultiLinear Material -- Hysteretic Behavior
MultiLinear Material -- Hysteretic Behavior





Latest revision as of 19:17, 4 December 2012




This command is used to construct a uniaxial multilinear material object.

uniaxialMaterial MultiLinear $matTag $u1 $f1 $u2 $f2 $u3 $f3 $u4 $f4 ...

$matTag integer tag identifying material
$u1 $f1 strain and stress (or deformation & force) at first point of the envelope
$u2 $f2 strain and stress (or deformation & force) at second point of the envelope
$u3 $f3 strain and stress (or deformation & force) at third point of the envelope
$u4 $f4 strain and stress (or deformation & force) at fourth point of the envelope


MultiLinear Material -- Hysteretic Behavior



Code Developed by: Frank Mckenna, UC Berkeley

Images Developed by: Vesna Terzic