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

[@جودیابوت-ص9ش]

excellent 👌❤

[@imdadimmu8741]

Thanks for support

[@anulekhachakraborty9901]

I have an imported part so in that I can not assign seam as it says "there are no geometry to assign seam". How to carry out countour integral crack modelling in such case?

[@AdarshGaurav-t7e]

hello anulekha...my work is based on fatigue crack....can u teach me

[@imdadimmu8741]

Very helpful video

[@adamroer3908]

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?

[@hazemismaeel1488]

Thank you very much

[@imdadimmu8741]

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]

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

[@engineering_software]

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

[@bhavyaravi]

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]

Please watch this video: kzbin.info/www/bejne/hqTVfJ6YpbaaeZI