Hello All,
Please, What would be a good procedure to get the maximum loads (or contact pressure ) to avoid a local buckling in a pipe, for example : a straight pipe supported on the middle of span ( the region pipe/support ) and the maximum moment which could be applied on a curved pipe (elbow)...
Hello all,
Could be possible to simulate with Abaqus a local buckling on a thin pipe, for example: a straight pipe supported in the middle of span or to get the maximum moment to avoid the local buckling on curved pipe ?
Thanks
Hello John Breen,
I understood you point of view and I agree with part of this but you also need to consider that the code procedures are the same for many years and all engineering sectors looking for solutions more adjusted and optimaizeds
so technology and experience should give the hands in...
Hello John Breen,
Thanks for your traditional attention!
If possible, I would like to continue a quite more this discussion and I really would apreciate your comments.
1) I did a plastic simulation with Abaqus FEA (including cyclic hardening) using a small pipe ( 11/2" sch40)...
Hello John Breen,
Thanks for your traditional attention!
If possible, I would like to continue a quite more this discussion and I really would apreciate your comments.
1) I did a plastic simulation with Abaqus FEA (including cyclic hardening) using a small pipe ( 11/2" sch40)...
Hello everyone !
I have studied the codes Asme B31.1 e B31.3 and I still did not find some answers for these questions which I would like to receive your comments and opinions:
a) The self-springing effect from A.R.C. Markl paper, which introduced the displacement allowable stress SA, it had...
Hello All,
I would like make a Creep simulation to a steel pipe using Abaqus 6.5 and I am having some doubts about the parameters to input on properties.
The power law that I know is: relative strain(time) = beta*Sigma^n and for my case I have the following parameters:
Relative strain (time )...
Hello All,
I would like make a Creep simulation to a steel pipe using Abaqus 6.5 and I am having some doubts about the parameters to input on properties.
The power law that I know is: relative strain(time) = beta*Sigma^n and for my case I have the following parameters:
Relative strain (time )...
Hello All,
I would like make a Creep simulation to a steel pipe using Abaqus 6.5 and I am having some doubts about the parameters to input on properties.
The power law that I know is: relative strain(time) = beta*Sigma^n and for my case I have the following parameters:
Relative strain (time )...
Hell all,
I am doing a thermal stress analyse (due to expansion ) in a pipe and the initial boundary condition to the ends of pipe would be encastre ( 06 dof lockeds )but I would need to release the radial expansion only in the ends keeping the encastre ( like a gap or "floating encastre" )this...
Hello All,
I need make a simulation which I have a pipe under thermal loading and your boundary ( end of pipe )is connected to a device (flange) which has a radial displacement to temperature expansion, too
Initially my pipe need a boundary constrain with 06 dof equal to zero but the radial...
Thanks Yoman228 ,
Please, Could you explain me what are these parameters e your units ?
Did you already do some similar modelling to verify "stress relaxation " what would have been your evaluation ?
Thanks
Hi all,
I started recently to work with Abaqus using thermal cicling loading and plasticity. To a first model ( a carbon steel pipe ) I used several steps increasing and decreasing the temperature values ( temp. room up to temp. max. and return to room ) and initially I think that were...
Hello everyone,
Some weeks ago I started a discussion about the rules presented in ASME code to flexibility analysis, in special about the allowable stress SA ( due to thermal displacements )which were got from Markl paper.
I have studied some models (with Abaqus - FEA) with nonlinear...
Hello,
Thanks Xerf and Yoman.
This pipe model should be made in carbon steel.
If possible, please, send me a example, tutorial or an indication of paper with some similar cases to: frdominguez@ig.com.br
Francisco
Hello, All !
I am a new user with Abaqus 6.5 and would like to develop a model to verify the level of stresses before and after a ciclic loading ( with temperature and pressure on a pipe ). One case the level of loading will reach the yeld point ( local plastic strains ) and the second case...
Hi ?
I would like to start to work with Abaqus 6.5 but I am not getting to find tutorials or examples using tools- box/windows, etc. only statement lists. How could I get this material ?
Thanks
Hi,unclesyd
I got some references and really the "Shakedown Concept" is in agree with the behavior related in may question but the problem would be to get functions or a way to simulate this to predict time, cycles or mainly final values to the stress after this re-distribuition . The shakedown...
