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  1. MihaelaN

    2D Axisymmetric contact problem

    Hello, How can a problem of a 2d solid axisymmetric model of threads in contact can be solved (how the contact is defined and what Nastran solution is more suitable)? Thank you!
  2. MihaelaN

    Threaded connections modelling with frictional contact in Patran/ Nastran

    Hello, I have an application that implies 2 hemispherical domes that are threaded to each other at equator. My interest is in modeling the threaded regions as frictional contact (either as 2 planar solids that are in contact or by modelling the actual threads of the domes that come in contact)...
  3. MihaelaN

    2D Axisymmetric contact problem

    Hello, How can a problem of a 2d solid axisymmetric model of threads in contact can be solved (how the contact is defined and what Nastran solution is more suitable)? Thank you!
  4. MihaelaN

    Threaded connections modelling with frictional contact in Patran/ Nastran

    Hello, I have an application that implies 2 hemispherical domes that are threaded to each other at equator. My interest is in modeling the threaded regions as frictional contact (either as 2 planar solids that are in contact or by modelling the actual threads of the domes that come in contact)...
  5. MihaelaN

    Fatigue Strain-Life curve conversion to Stress-Life curve

    @LiftDivergence, thank you for your reply. I have done some strain-controlled fatigue testing on welded test specimens and therefore I have the available strain-life fatigue data. This data will be used to analyze a welded pressure vessel using an S-N fatigue curve, so I need either to convert...
  6. MihaelaN

    Fatigue Strain-Life curve conversion to Stress-Life curve

    Hello, Is there any methodology to convert a strain-life curve into stress-life curve even though it is meant to be used in low-cycle fatigue analysis? Thank you in advance!
  7. MihaelaN

    Inter-rivet buckling composite laminates

    Hello, Does inter-rivet buckling is an applicable local stability failure mode for composite laminates? If yes, what is the methodology? Thank you in advance!
  8. MihaelaN

    Inter-rivet buckling laminate composite

    Hello, Does inter-rivet buckling is an applicable local stability failure mode for composite laminates? If yes, what is the methodology? Thank you in advance!
  9. MihaelaN

    SRS ANALYSIS PATRAN/NASTRAN

    What are the options to do a SRS analysis with PATRAN/ NASTRAN having as input a function of acc vs freq? Thank you in advance!
  10. MihaelaN

    Shock Response Spectrum Analysis Patran/ Nastran

    What are the options to do a SRS analysis with PATRAN/ NASTRAN having as input a function of acc vs freq? Thank you in advance!
  11. MihaelaN

    Modelling viscoelastic materials Patran/Nastran

    Hello everybody, I have some issues regarding the modeling of viscoelastic materials in Patran 2012. The main issue is that even if the material card MATVE appears to be completed, the error that occurs when solving with SOL 400 is that "there are no materials properties defined". The steps...
  12. MihaelaN

    Modelling viscoelastic materials Patran/Nastran

    Hello everybody, I have some issues regarding the modeling of viscoelastic materials in Patran 2012. The main issue is that even if the material card MATVE appears to be completed, the error that occurs when solving with SOL 400 is that "there are no materials properties defined". The steps...
  13. MihaelaN

    Modelling viscoelastic materials

    Hello everybody, I have some issues regarding the modeling of viscoelastic materials in Patran 2012. The main issue is that even if the material card MATVE appears to be completed, the error that occurs when solving with SOL 400 is that "there are no materials properties defined". The steps...

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