force-displacement curve

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

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

<?xml version="1.0" encoding="UTF-8"?>1.png

<?xml version="1.0" encoding="UTF-8"?>2.png

Tagged:

Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited April 2018

    Please refer below post for plotting force vs displacement curve using HyperGraph.

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2018

    thank you mr.Rahul. but i don't know how can  i create *.ABF file?! could you please  guide me?

    thanks and best regards

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited April 2018

    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.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    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.

     

     

     

     

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    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.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

     

    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 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018
    Altair Forum User 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 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    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. 

     

     

Categories