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  1. Jay Prajapati

    how to solve this negative eigen value error?

    I have given all the boundary condition right. but still can you please check it once here I attached file. The only problem is that glass doesnt move in next step. Even I have started early to move glass before filament touch to it but still it wont work...
  2. Jay Prajapati

    how to solve this negative eigen value error?

    So what can I do? can I give nozzle fine mesh and try. Because in my next step glass should move but it doesnt move. And which contact property is good? i have given surface to surface is it ok?
  3. Jay Prajapati

    how to solve this negative eigen value error?

  4. Jay Prajapati

    how to solve this negative eigen value error?

    Hello, When I start next step it stops. normally in next step glass should move in X direction but I dont know it stops may be wrong interaction property. here is attached file. you can check. https://files.engineering.com/getfile.aspx?folder=7061d42c-bfd4-4a16-80c2-f3c436d2dd7e&file=Copy_Copy.inp
  5. Jay Prajapati

    How cn I do Natural Convection?

    Its not possible to put Filament inside because I need conduction between Filament and nozzle. I have tried with small distance between nozzle and Glass but when step-2 starts it stops automatically. https://res.cloudinary.com/engineering-com/raw/upload/v1567408889/tips/All_Together_x8udot.dat
  6. Jay Prajapati

    How cn I do Natural Convection?

    Just check this one I ran this one with mass Scaling but still it...
  7. Jay Prajapati

    How cn I do Natural Convection?

    Ok here it is.https://files.engineering.com/getfile.aspx?folder=ad571d92-9122-4773-b548-dde3aca2b725&file=Explicit_All_Part.inp
  8. Jay Prajapati

    How cn I do Natural Convection?

    Is it possible with fine mesh to get result in standard(coupled-temperature-displacement)?https://files.engineering.com/getfile.aspx?folder=e6e4de5c-14b4-45b1-9987-b07d62e80664&file=Explicit_All_Part.msg
  9. Jay Prajapati

    How cn I do Natural Convection?

    https://res.cloudinary.com/engineering-com/raw/upload/v1566900510/tips/Explicit_All_Part_bqh0g7.dat In explicit is it possible to do simulation with big total time in step? like in one step 15 second?
  10. Jay Prajapati

    How cn I do Natural Convection?

    https://res.cloudinary.com/engineering-com/raw/upload/v1566830942/tips/Explicit_All_Part_upcy3w.dathttps://res.cloudinary.com/engineering-com/raw/upload/v1566830957/tips/All_Together_wgth1n.msg
  11. Jay Prajapati

    How cn I do Natural Convection?

    In explicit I have problem with time. I gave total time 15 sec with 0.002 m/s velocity but its stops with the error that it needs more increment.
  12. Jay Prajapati

    How cn I do Natural Convection?

    And here is data filehttps://files.engineering.com/getfile.aspx?folder=b7e9adf9-249b-495e-9967-507ce250e427&file=All_Together.dat
  13. Jay Prajapati

    How cn I do Natural Convection?

    you can check herehttps://files.engineering.com/getfile.aspx?folder=da493de2-407e-42a3-90f5-178874587f26&file=All_Together.msg
  14. Jay Prajapati

    How cn I do Natural Convection?

    Hello Sir I got your point. but I have one more problem that after completion of my first step(Material comes down until glass) simulation stops. just start step 2 but it stops in 1 increment only can you just tell me how can I solve this error?
  15. Jay Prajapati

    How cn I do Natural Convection?

    still for convection I'm confused that how to used. Cause the part coming is normally at room temperature and inside nozzle its conduction and the I want to give that extruded material a convection. so can I cut my part with datum plane and then choose only that part?
  16. Jay Prajapati

    How cn I do Natural Convection?

    thank you for response. I got your point but for conduction is it ok to make surface to surface interference between plate surface and whole extruded material? or better use nodes of extruded material instead of whole part? 2) in convection that is the problem that I have not clear body. I will...
  17. Jay Prajapati

    How cn I do Natural Convection?

    In my model I'm doing plastic extrusion simulation with motion of nozzle simultaneously. So material is flowing continuously and when material comes out of nozzle I want to add convection and conduction. 1)I want to do natural convection with melted material with the air. so how can I do...
  18. Jay Prajapati

    ABS nominal stress- nominal strain data

    Hello, can anyone share data of ABS as I'm doing my research work and I need this data but since long time I didnt get this one. if someone has this data please share with me.
  19. Jay Prajapati

    Is this properties are enough for Extrusion simulation in ABAQUS or I need to add more?

    thank you @IRstuff. I'm new so I have no idea. but I will do conversation there.
  20. Jay Prajapati

    Hello, I'm doing plastic extrusion

    Hello, I'm doing plastic extrusion simulation in ABAQUS. so my Nozzle is of brass and Billet is of ABS material. I have Thermal conductivity, Density, Specific heat, youngs modulus, poissions ratio, Coefficient of thermal expansion for both material. 1) Do I need more properties for both ? 2) Is...

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