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  • Users: matthat
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  1. matthat

    can i submit jobs to a server

    i would like to submit jobs to our server as it has more memory can this be done
  2. matthat

    ELSET CANNOT BE MORETHAN 80 CHARACTERS

    i had patterned a part about 60 times so it name came up rad1-rad1-pso1 pos1 and the names of the final patterned parts had names longer than 80 characters
  3. matthat

    convert parts from abaqus into dxf files

    i am using abaqus to design and test new products, now i have a product tested i want to make it on the cnc machine which only accepts dxf files does anyone know how to make a dxf file or know of a free converter?
  4. matthat

    Cannot run Input files, please help

    i have has this problem aswel. i have a systel with 4gb ram and it wanted a contigious block of 923mb ram and only 920 was available, i reduced the elements and it came up wanting 915 and only 910 available, i simply submitted it to a server after that and it took many more hours than my...
  5. matthat

    scaliung down parts

    i have digitised a helmet with a microscribe and imported it into abaqus, problem is its 100 times too big, importing it into scale makes the part invalid which cannot be repaired, can you scale parts after importing?
  6. matthat

    multiple drop test in 1 analysis

    this works, thanks guys exactly as you said 1 initial 3.42ms 2 drop 1 3 velocity 5.42 4 turn off v5.42 - impact 5 velocity 5.42 6 off v5.42 then impact
  7. matthat

    multiple drop test in 1 analysis

    Thanks I will try this when I get to work in the morning
  8. matthat

    multiple drop test in 1 analysis

    Why is there 3 surfaces . I have only one surface. Do I need 3
  9. matthat

    multiple drop test in 1 analysis

    is there any chance you could explain it step by step
  10. matthat

    multiple drop test in 1 analysis

    elabbasi, i have done as you have suggestedbut now i have anew problem, after the helmet has impact once it goes back for the next impact but noe the helmet judt goes straight throught the impact surface as though its not there, or as though my general contact interaction no longer works, but it...
  11. matthat

    multiple drop test in 1 analysis

    i am attemting to model a helmet for an american polo standard where the helmet is dropped 3 times onto the same spot, after the 1st impact the eps liner deforms and the the protection to the head decreases, the next drop is faster at 5ms and yet again more deformation and less proetection. the...
  12. matthat

    multiple drop test in 1 analysis

    i am modeling a helmet that needs to undergo 3 drop tests in one analysis it needs to drop at a velocity 3m/s where i request the deceleration data, it then needs to drop 5.9m/s and then a third drop of 5.9m/s, how do i do this as i cant add a step after the 1st drop that will allow me to change...
  13. matthat

    ELSET CANNOT BE MORETHAN 80 CHARACTERS

    i am getting this error when trying to run an analyis ***ERROR: VALUE FOR PARAMETER ELSET CANNOT BE MORETHAN 80 CHARACTERS does anyone know how to solve this?
  14. matthat

    how do i model i force transducer

    i am conducting impact tests on a plastic material the plastic is on an anvil and a striker hits the material. the actual bsi test house has the anvil on a force transduser that measures the force transferred to the anvil how could i model the force transducer, its piezo electric crystal by the way
  15. matthat

    how do i input stress strain data for a mat into abaqus from lab tests

    right i have taken the deformation over original length to get the strain ascending and this seems to be working. now all i have to do is work out how much force is transfered to the anvil, i need to replicate a force transducer, any ideas, i have an impactor falling onto the anvil with the...
  16. matthat

    how do i input stress strain data for a mat into abaqus from lab tests

    i have done 4 tests with results identical . the material is very consistant
  17. matthat

    how do i input stress strain data for a mat into abaqus from lab tests

    the material is a sheet of plastic tubes 0.08mm thick walls with 6mm diameter, after the initial lplastic peak the tubes start to crumple and then harden as it is crumpled, thanks for your help i will try sorting out the strain now
  18. matthat

    how do i input stress strain data for a mat into abaqus from lab tests

    this data is from a compression test i attatch the data here force vs displacement on a 15mm thick piece surface area 89mm youngs modulus 76mpa poisson 0.3 http://files.engineering.com/getfile.aspx?folder=4f5ee164-7496-419e-9890-3f18bbb225cb&file=stress_strain_data.xlsx
  19. matthat

    how do i input stress strain data for a mat into abaqus from lab tests

    im not sure if it just the case of smoothing because i have the initial elastic peak then it drops before the plastic curve, should i just be putting in the plastic part of the curve in up to its peak?
  20. matthat

    how do i input stress strain data for a mat into abaqus from lab tests

    here is my stress stain datahttp://files.engineering.com/getfile.aspx?folder=9e7b8423-7149-4297-87e2-cdd2be09487b&file=plastic_stress_strain.txt
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