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Saeideh

force-displacement curve

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Hi

I have a pipe with non linear material , internal pressure and a force  end of pipe , 2 load step, at the first step I have only internal Pressure and in second load step,Pressure+ Force. I have defined the force as pressure. after analyse I want to get force- Displacement (force end of pipe  as pressure ) . I need force-time and displace-time curve but I have only one time . I need many time to get curve. what should I do?

Best regards

S.Faghfouri

1.png

2.png

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If you are using Altair OptiStruct or Radioss solver,then you can use .h3d file to plot curve.For other solver, please use a file which contain this output.Please share the solver used for analysis.

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hi . i share my file. could you please make for me a force displacement curve for subcase 1 and 2 ? as a result I have to get  following diagram :

thank you.

 

 

 

 

 

 

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Hi @Saeideh

 

I am not clear about the analysis and also solver.

 

I see /RUN card in the model but works with OptiStruct. Please clarify.

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Quote

 

hi,

thank you mr Pagadala for your answer.

it is so:

at the first, there ist only an internal pressure of p=2.5 Mpa ( this pressure with a load scale can increase ( incrementally) up to 2.5 Mpa).  now i have pressure (p=2.5 Mpa) and I have to bring  an axial force (increases incrementally) at the end of pipe up to welding area is plastified.   ( as a figure - this force is defined hier as a pressure too) .

best regards 

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8 hours ago, Prakash Pagadala said:

Hi @Saeideh

 

I am not clear about the analysis and also solver.

 

I see /RUN card in the model but works with OptiStruct. Please clarify.

hi,

thank you mr Pagadala for your answer.

it is so:

at the first, there ist only an internal pressure of p=2.5 Mpa ( this pressure with a load scale can increase ( incrementally) up to 2.5 Mpa).  now i have pressure (p=2.5 Mpa) and I have to bring  an axial force (increases incrementally) at the end of pipe up to welding area is plastified.   ( as a figure - this force is defined hier as a pressure too) .

best regards 

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Hi,

 

OK, thank you,

 

If you want to plot applied load Vs displacement, you can add OLOAD card to your model which outputs applied load. 

 

 

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