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  1. David Browne

    NON-LINEAR, LIMIT LOAD ANALYSIS: DESIGN OF EXPERIMENT (TABLE OF DESIGN POINTS) CONTINUOUS RUN

    All, I am running a non-linear limit load analysis [LLA] in which I am taking my model (geometry and material model) to plastic collapse. I am performing a design of experiment (DoE) in which I am varying a set of design parameters to assess the maximum burst pressure my component fails at...
  2. David Browne

    ENGINEERING TO TRUE STRESS VS STRAIN DATA

    Thank you folks. I managed to calculate true stress and strain using σ = Load/FinalArea and ε = ln(Ao/A) respectively then just interpolated from the last data set to the newly calculated values. Looks like this: Regards, David.
  3. David Browne

    Elastic-Plastic Analysis - Determine the maximum load for a burst test

    Hello all, I'm using ANSYS 18.2 Workbench Enterprise. I am running an elastic-plastic analysis in accordance with ASME VIII Div 2 Part 5 where I wish to determine the maximum pressure load at the point I am predicting the design to gross plastically collapse. Is there an easier and more...
  4. David Browne

    ENGINEERING TO TRUE STRESS VS STRAIN DATA

    Hello all, I have a set of mechanical tensile test data in which I wish build material models in ANSYS. I have Tensile Strain (mm/mm) data and Tensile Stress (MPa) data. These are Engineering Stress/Strain values provided by our testing house (raw data). I am however looking for True...
  5. David Browne

    ANSYS SPACECLAIM - Attempting to paste 2D sketches on to planes

    Hi everyone, Is it possible to paste a 2D sketch created in Autocad on to a 2D plane in Spaceclaim? The Autocad file is essentially the master template so that can't be changed. I would like to import that .dwg file on to a specified plane in Spaceclaim, then, apply a sketch profile to the...
  6. David Browne

    APPLYING FORCES/MOMENTS

    All, Does it make a difference in Caesar when you specify the direction of the force and/or moments, or does Caesar run the analysis for both positive and negative components of the same force...
  7. David Browne

    Importing Parameterized Catia model in to ANSYS Workbench

    All, 1) I am working on a design of experiment (DoE) in ANSYS. 2) I created a parameterized model in Catia V5. 3) I wish to be able to pull in those parameters defined in Catia in to Ansys so the DoE can run as per a usual DoE experiment. 4) I have already converted the Catia Product...
  8. David Browne

    Importing Parameterized Catia model in to Ansys Workbench

    All, 1) I am working on a design of experiment (DoE) in ANSYS. 2) I created a parameterized model in Catia V5. 3) I wish to be able to pull in those parameters defined in Catia in to Ansys so the DoE can run as per a usual DoE experiment. 4) I have already converted the Catia Product...
  9. David Browne

    Drying of Shell & Tube Heat Exchangers

    DWARAKAKRISHNA, Correct. Hot purge the HE allowing the air to flow through outlet. Use a temperature gun to assess outlet nozzle air temperature. Hold at desired temperature for up to 5 hours. Also if you're the operator, maybe look through the manufacturer's equipment dossiers provided with...
  10. David Browne

    Drying of Shell & Tube Heat Exchangers

    I would not pneumatic test this HE unless there was absolutely no way of performing a hydrotest due to the drastic increase in stored energy. Use an industrial heater fan connected via ducting to the nozzles allowing air to pass through the outlet and run for several hours (>10m long HE).
  11. David Browne

    Constraining AutoCAD-imported sketches in CATIA on to planes of parts

    Hi all, Apologies in advance if I am asking a repeated and past question. 1) I am attempting to constrain a sketch which I have imported from AutoCAD by importing to Catia Drawing then copy and paste on to Catia Part model - complete. 2) The sketch itself is made up of thousands of...
  12. David Browne

    PD5500 Reactor Vessel: A requirement for bolt loading calculations with an O-ring seal.

    [Please refer to attachment throughout] Dear fellow users, I'm validating a reactor vessel design as per the client's requested design code [PD5500]. Essentially I have three parts to this simple assembly - backing plate, shell and front plate - bolted together and sealed around the peripheral...

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