Hi!
I've got a question about element recorders for fiber sections. when defining recorders for circular sections, should I mention fiber coordinates in Y-Z or R-Theta coordinates?
Thank you in advance
Fiber section recorder
Moderators: silvia, selimgunay, Moderators
Re: Fiber section recorder
Thanks!
Re: Fiber section recorder
Hello
I want record damage in element with fiber section. In the following example from opensees command manual, the integer number front of "section'' what is refers to ? is it the name of section or integrity point along element?
recorder Element -file Element1.out -time -ele 1 3 section 1 fiber 0.10 0.10 stressStrain
I want record damage in element with fiber section. In the following example from opensees command manual, the integer number front of "section'' what is refers to ? is it the name of section or integrity point along element?
recorder Element -file Element1.out -time -ele 1 3 section 1 fiber 0.10 0.10 stressStrain
Re: Fiber section recorder
Kavir,
It is response of elements 1 and 3 at both of their integration point(=section) 1.
It is response of elements 1 and 3 at both of their integration point(=section) 1.
Re: Fiber section recorder
the section in the command just tells the element that this is a section response that is needed, the first integer after the section tells the element which section to send the request to, in your case section 1 .. so in your example, section 1 of elements 1 and 3 will be asked for the response of "fiber 0.10 0.10 stressStrain"
Re: Fiber section recorder
Thank you sir fmk.
Re: Fiber section recorder
Hi
I have another question about recorder. in recorder of fatigue material for damage the integer after material what is refer to?
is it material tag? I do not understand explanation of fatigue material forum by ozgura. can you explain it simple for me?
I have another question about recorder. in recorder of fatigue material for damage the integer after material what is refer to?
is it material tag? I do not understand explanation of fatigue material forum by ozgura. can you explain it simple for me?
Re: Fiber section recorder
Hi
for recording damage in a fiber section who can I record max damage in a section? in the following command where is the location of 1st fiber in section?
recorder Element -xml "Damage1.out" -time -ele 1 2 section 1 material 0.1 damage
the fiber locations are the same for the fiber numbers from 0.0 to 0.9, which are for the 1st fiber
"Ozgur Atlayan "
for recording damage in a fiber section who can I record max damage in a section? in the following command where is the location of 1st fiber in section?
recorder Element -xml "Damage1.out" -time -ele 1 2 section 1 material 0.1 damage
the fiber locations are the same for the fiber numbers from 0.0 to 0.9, which are for the 1st fiber
"Ozgur Atlayan "
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Re: Fiber section recorder
fmk wrote:
> the section in the command just tells the element that this is a section
> response that is needed, the first integer after the section tells the
> element which section to send the request to, in your case section 1 .. so
> in your example, section 1 of elements 1 and 3 will be asked for the
> response of "fiber 0.10 0.10 stressStrain"
hi fmk, I try the code :
recorder Element -file Element1.out -time -ele 1 section 1 fiber 0.10 0.10 stressStrain
In fact ,i want to get section curvature in a 0-length-element ,
for three point like (0.1 -0.1 ), (0.1 0.1)(-0.1 -0.1).the strain is the same .the data maybe not the same.
Does the code has its range of application？
> the section in the command just tells the element that this is a section
> response that is needed, the first integer after the section tells the
> element which section to send the request to, in your case section 1 .. so
> in your example, section 1 of elements 1 and 3 will be asked for the
> response of "fiber 0.10 0.10 stressStrain"
hi fmk, I try the code :
recorder Element -file Element1.out -time -ele 1 section 1 fiber 0.10 0.10 stressStrain
In fact ,i want to get section curvature in a 0-length-element ,
for three point like (0.1 -0.1 ), (0.1 0.1)(-0.1 -0.1).the strain is the same .the data maybe not the same.
Does the code has its range of application？
Re: Fiber section recorder
fmk wrote:
> the section in the command just tells the element that this is a section
> response that is needed, the first integer after the section tells the
> element which section to send the request to, in your case section 1 .. so
> in your example, section 1 of elements 1 and 3 will be asked for the
> response of "fiber 0.10 0.10 stressStrain"
that was very helpfull. but ...when i try this at a moment curvature problem with a zerolengthelement i still cant get it right . and the element1.out file contains only moment values. here is my section
section Fiber 1 {
# Create the concrete core fibers
patch rect 1 9 9 [expr $cover-$y1] [expr $cover-$z1] [expr $y1-$cover] [expr $z1-$cover]
# Create the concrete cover fibers (top, bottom, left, right)
patch rect 2 2 2 [expr -$y1] [expr $z1-$cover] $y1 $z1
patch rect 2 2 2 [expr -$y1] [expr -$z1] $y1 [expr $cover-$z1]
patch rect 2 2 2 [expr -$y1] [expr $cover-$z1] [expr $cover-$y1] [expr $z1-$cover]
patch rect 2 2 2 [expr $y1-$cover] [expr $cover-$z1] $y1 [expr $z1-$cover]
# Create the reinforcing fibers (left, middle, right)
layer straight 3 5 $As [expr $y1-$cover] [expr $z1-$cover] [expr $y1-$cover] [expr $cover-$z1]
layer straight 3 5 $As [expr $cover-$y1] [expr $z1-$cover] [expr $cover-$y1] [expr $cover-$z1]
and i want the values of stress and strain of one point of the section for all the steps of moment curvature analysis
how can i do that ?? should i have given a "fiber $yLoc $zLoc $A $matTag" command? when building the section
thank you in advance.
> the section in the command just tells the element that this is a section
> response that is needed, the first integer after the section tells the
> element which section to send the request to, in your case section 1 .. so
> in your example, section 1 of elements 1 and 3 will be asked for the
> response of "fiber 0.10 0.10 stressStrain"
that was very helpfull. but ...when i try this at a moment curvature problem with a zerolengthelement i still cant get it right . and the element1.out file contains only moment values. here is my section
section Fiber 1 {
# Create the concrete core fibers
patch rect 1 9 9 [expr $cover-$y1] [expr $cover-$z1] [expr $y1-$cover] [expr $z1-$cover]
# Create the concrete cover fibers (top, bottom, left, right)
patch rect 2 2 2 [expr -$y1] [expr $z1-$cover] $y1 $z1
patch rect 2 2 2 [expr -$y1] [expr -$z1] $y1 [expr $cover-$z1]
patch rect 2 2 2 [expr -$y1] [expr $cover-$z1] [expr $cover-$y1] [expr $z1-$cover]
patch rect 2 2 2 [expr $y1-$cover] [expr $cover-$z1] $y1 [expr $z1-$cover]
# Create the reinforcing fibers (left, middle, right)
layer straight 3 5 $As [expr $y1-$cover] [expr $z1-$cover] [expr $y1-$cover] [expr $cover-$z1]
layer straight 3 5 $As [expr $cover-$y1] [expr $z1-$cover] [expr $cover-$y1] [expr $cover-$z1]
and i want the values of stress and strain of one point of the section for all the steps of moment curvature analysis
how can i do that ?? should i have given a "fiber $yLoc $zLoc $A $matTag" command? when building the section
thank you in advance.
Re: Fiber section recorder
Hi
In element recorder object if we request forceAndDeformation (without -time) so the output file consists of four columns. What is each column respectively?
In element recorder object if we request forceAndDeformation (without -time) so the output file consists of four columns. What is each column respectively?
Re: Fiber section recorder
depends on the element. what is the actual element and recorder command.
Re: Fiber section recorder
Hi
If I use nonlinear beam Column element and use element recorder for recording forceAndDeformation so my question is:
recorder save strain or deformation?
If I use nonlinear beam Column element and use element recorder for recording forceAndDeformation so my question is:
recorder save strain or deformation?
Re: Fiber section recorder
Hi
I model a CBF and fixed base of column in 3 degree of freedom. so I expect rotation of column at the its base be zero. but when record forceAndDeformation of it I see that there is rotation at base of column element!!!!! is there problem or my understanding is wrong?
I model a CBF and fixed base of column in 3 degree of freedom. so I expect rotation of column at the its base be zero. but when record forceAndDeformation of it I see that there is rotation at base of column element!!!!! is there problem or my understanding is wrong?