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Tetramesh problem in hypermesh 2017

User: "Dzh_lin"
Altair Community Member
Updated by Dzh_lin

Hi guys,

     I find there is some bug in tatramesh with hm 2017 while it is ok in hm14.0.

     For the same solid, after I split it with same params, and then mesh the solid body, the number of node and elements are different each time in hypermesh 2017.2;

     But in hm 14, It OK

     The steps I do as follow:

     1\open hypermesh

     2\import utg model (attachment)

     3\split the solid with X-plane-(0 0 0)

     4\mesh the solids 

     5\remember the number of the node and elements

     6\repeat 1-5 and compare with the first number.

 

How to fix this problem ?

Thanks .

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    User: "Dzh_lin"
    Altair Community Member
    OP
    Updated by Dzh_lin

    Anyone help?

    User: "Altair Forum User"
    Altair Employee
    Updated by Altair Forum User

    Hi  Dzh_lin,

     

    After trimming the solid, Mask half of the solid and mesh it. Then, Reflect the elements to other half.

     

     

    Thank you

    User: "tinh"
    Altair Community Member
    Updated by tinh

    Anyone help?

     

    Does it affect to your analysis? If not, just simply ignore it.

    User: "Dzh_lin"
    Altair Community Member
    OP
    Updated by Dzh_lin

     

    Does it affect to your analysis? If not, just simply ignore it.

    Hi tinh,

       Thanks .

        It does affect the result.

    :unsure:/emoticons/default_unsure.png' title=':unsure:' />

    User: "Dzh_lin"
    Altair Community Member
    OP
    Updated by Dzh_lin

    Hi  Dzh_lin,

     

    After trimming the solid, Mask half of the solid and mesh it. Then, Reflect the elements to other half.

     

     

    Thank you

     

    Hi Premanand Suryavanshi,

      Thanks,

      I used this function with tcl code, and the model always can not mesh by reflect.

      I think it may be a bug ? or there is some other setting ?

    User: "Altair Forum User"
    Altair Employee
    Updated by Altair Forum User

    I used this function with tcl code, and the model always can not mesh by reflect.

      I think it may be a bug ? or there is some other setting ?

    I think the program might be written in that way . I don't see any other settings to fix this.

     

    Thank you

    User: "Dzh_lin"
    Altair Community Member
    OP
    Updated by Dzh_lin

    I think the program might be written in that way . I don't see any other settings to fix this.

     

    Thank you

    Yes,Maybe。

    But the same issue do not appear in hypermesh 14.0.

    So this problem confused me.

    I think those change for some geometry do not have advantage for analysis.

    User: "tinh"
    Altair Community Member
    Updated by tinh

    Hi tinh,

       Thanks .

        It does affect the result.

    :unsure:/emoticons/default_unsure.png' title=':unsure:' />

     

    You can mesh it once, save it as an hm file.

    with each analysis, you import the hm file to set up parameters...

    so analysis will not be affected by different node count/ elem count

    User: "Dzh_lin"
    Altair Community Member
    OP
    Updated by Dzh_lin

     

    You can mesh it once, save it as an hm file.

    with each analysis, you import the hm file to set up parameters...

    so analysis will not be affected by different node count/ elem count

    Thanks tinh,

    this maybe one way.