I have modeled a piping component (half model) with a surface notch upto 4 mm whereas the total thickness is 14.69 mm in abaqus. My job is to find out the stress intensity factor and strain energy using CONTOUR INTEGRAL. Here I attach the error in pic. can u pls let me know how to solve it????
NOTE : I have Tetragonal mesh as only option for meshing in which some of the regions around the crack tip were found to have zero size elements
As the manual (analysis, section 11.4.2) states
"can be used only with two-dimensional quadrilateral elements or three-dimensional brick elements when used with the conventional finite element method;"
So you simply have to re-mesh your structure using quads/bricks in the region of your crack tip.
For better resolution of stress fields, it may be helpful to use a quarter-point mesh, see the subsection
Constructing a fracture mechanics mesh for small-strain analysis with the conventional finite element method
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