Crack simulation in Abaqus: J-integral, designing mesh around crack

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  • เผยแพร่เมื่อ 10 ก.ย. 2024

ความคิดเห็น • 9

  • @imdadimmu8741
    @imdadimmu8741 11 หลายเดือนก่อน

    Thanks for support

  • @imdadimmu8741
    @imdadimmu8741 11 หลายเดือนก่อน

    Very helpful video

  • @hazemismaeel1488
    @hazemismaeel1488 3 ปีที่แล้ว +1

    Thank you very much

  • @adamroer3908
    @adamroer3908 2 ปีที่แล้ว

    Could you say anything about which meshes are compatible and incompatible with J-Integral output requests?
    I used the following mesh controls and element type for the circle around a crack.
    - quad-dominated shaped elements
    - mesh technique: swept
    - element type linear
    My J-Integral calculation failed. An error message stated
    Error in job NewJob1: Triangles, Tetrahedra and wedges may not be used in a contour integral region. 33 elements are within a contour region. The elements are identified in element set ErrElemIncorrContInteg.
    With my mesh controls, the generated mesh included some triangular elements (the elements closest to the singularity. I created a circle around the singularity with 34 radial lines, therefore 33 slices - which explains the referece to 33 elements above..) which seems to be what the error is talking about. Why does J-Integral calculation fail because of this? When I use a quad shaped grid of mesh elements around the crack tip i dont have a problem. However I know that i should mesh a circle around the crack tip, not a grid
    Do you have any recommendations of how to solve this issue?

  • @bhavyaravi
    @bhavyaravi 2 ปีที่แล้ว

    I am getting this error
    Error in job Jintegral: The area of 18 elements is zero, small, or negative. Check coordinates or node numbering, or modify the mesh seed. The elements have been identified in element set ErrElemAreaSmallNegZero.

    • @engineering_software
      @engineering_software  2 ปีที่แล้ว

      Please watch this video:
      th-cam.com/video/PsrKkbpQgC0/w-d-xo.html

  • @imdadimmu8741
    @imdadimmu8741 11 หลายเดือนก่อน

    I want to learn Abacus software related to my research work and my topic is Fatigue behaviour of headed stud shear connectors in steel concrete composite beams

  • @hazimesmaeel8186
    @hazimesmaeel8186 3 ปีที่แล้ว

    Dear Sir is the angle and length of crack effecting on J value, Thank you in advance

    • @engineering_software
      @engineering_software  3 ปีที่แล้ว

      Geometry of the part and crack affect the stress field and consequently all the contour integrals.