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  1. PriamEngineering

    strange tensile results

    Update. I have recieved the micro etching report and it states that the grain structure is: "Microstructure consisting of tempered martensite with some grains indicative of low carbon martensite and probably some bainite" is this what you would expect from a correctly normalized, hardened and...
  2. PriamEngineering

    strange tensile results

    I have asked for this to be done. I am not sure of the heat treatment process involved in this forging. Normally I would go for a harden and temper but as this hs to be NACE compliant the harness has an upper limit. So maybe annealing would be involved? ? Would the presence of pearlite or...
  3. PriamEngineering

    strange tensile results

    Thanks for the feedback so far. Can you explain to me what you mean by segregation? I will ask for the chemistry, hardness and microstructure to be reported on. thanks Derek www.priamengineering.co.uk
  4. PriamEngineering

    strange tensile results

    Hello, can anyone advise me on the following problem? We have bought some components from a machine shop. Tubular forgings. It's offshore equipment. The material spec is a F22 (90ksi Yield) forging. The material certs from the foundry state the material meets all yeild, UTS, NACE (hardness) and...
  5. PriamEngineering

    Can Someone enlighten me as to the nature of this anchor?

    I lived in building when these anchors were retro fitted (UK). It was done when the whole building was refurbished. that is all the timber right down to the joists were removed due to dry rot. the "anchors" are plates on the ends of huge steel rods that go right through the building and are...
  6. PriamEngineering

    Minimum material properties? structural steel Linear, NL analysis

    ASME VIII Division 2 annex 3D is a good source for true stress strain curve generation. Priam www.priamengineering.co.uk
  7. PriamEngineering

    meshing solid45 to hollow cylinder with internal defect

    just to show it can be done here is a sample www.priamengineering.co.ukhttp://files.engineering.com/getfile.aspx?folder=adb69cb2-0d48-4c92-8882-c5135aee1841&file=test.PNG
  8. PriamEngineering

    meshing solid45 to hollow cylinder with internal defect

    if you are new to this software your company should provide training. have a look at the Ansys help, it's extensive and useful. good luck www.priamengineering.co.uk
  9. PriamEngineering

    meshing solid45 to hollow cylinder with internal defect

    ok. pretty simple. You need to dice up your geometry using the vsbw command (there are other ways but I use this)to isolate the 'defect' So I'd section through the diameter first then rotate the workplane to cut the created half annulus to leave the defect isolated. then I'd use the Vsweep...
  10. PriamEngineering

    meshing solid45 to hollow cylinder with internal defect

    buckling analysis? post a pic of the defect www.priamengineering.co.uk
  11. PriamEngineering

    meshing solid45 to hollow cylinder with internal defect

    your geometry looks so simple that you could create it in Ansys direct. is the defect intentional? www.priamengineering.co.uk
  12. PriamEngineering

    Common Source of Automotive Vibration?

    top of the cylinder head (assuming vertical in line engine)this will capture the firing induced acceleration www.priamengineering.co.uk
  13. PriamEngineering

    problem with importing catia file

    I don't know your geometry. either you have a pretty dirty file (crossing lines and ares) or you have only exported lines. what can be done? look at the export option in catia (i don't use it so I am guessing here) try importing as an iges or para solids file. priam www.priamengineering.co.uk
  14. PriamEngineering

    problem with importing catia file

    Itsounds like you are just pulling in lines. If you type aplot after you import the step it will show you any areas that are there. If there are no areas you'll have to create them by hand by using the 'al' command. priam www.priamengineering.co.uk
  15. PriamEngineering

    problem with importing catia file

    try /prep7 alls nummrg,kp,,0.01 va,all www.priamengineering.co.uk
  16. PriamEngineering

    problem with importing catia file

    after import try.... nummrg,kp,,0.01 alls va,all www.priamengineering.co.uk
  17. PriamEngineering

    Boundary conditions Connections and loads

    a free body diagram can help a lot. www.priamengineering.co.uk
  18. PriamEngineering

    Problem with Glue boolean-operation

    Your using AnsysED! you are not allowed to post course work questions here. Sorry. www.priamengineering.co.uk
  19. PriamEngineering

    Problem with Glue boolean-operation

    you don't need the aglue if you do as above. the nummrg will do the gluing for you. all areas will be joined... don't believe me? try this. copy and paste into ansys excluding the nummrg. See the double lines? now put in the nummrg... dada... /PREP7 et,1,plane121 mp,perx,1,80...
  20. PriamEngineering

    Problem with Glue boolean-operation

    try this...... /PREP7 et,1,plane121 mp,perx,1,80 rectng,0,200,0,200 rectng,20,30,200,125 rectng,20,30,0,75 rectng,0,20,200,125 rectng,0,20,0,75 rectng,30,200,200,125 rectng,30,200,0,75 rectng,20,30,75,125 nummrg,kp,,0.01 best priam www.priamengineering.co.uk

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