Brick chaouche Amine's blog

Good mourning everybody, i need to use cohesive element in an FE analysis using the FE code Abaqus, i'll attach a figure in which i'll show the cohesive low (that is a trapezoidal chape cohesive low) i want to use since a similar form i use in another study using an analytical method based on the integral equation approach, the cohesive from is inspired from the well known Dugdale Model this simple model can be easily used and incorporated in an analytical method, my quation is shall i implement this cohesive trapezoidal from via a user element subroutine or use an existing cohesive model i

Good mourning, i'll ask a quick and strightforward question abour Abaqus fracture analysis capabilities, in case of a crack in a ductile material, when one want to use arbitrary path crack propagation with XFEM, what's the suitable damage initiation criterion to use for this case?

Good mourning Dear iMecha mates,

Good mouring Imechanica's users, i have a question about the cohesive elements and thier embedding in a finite element mesh, i have a 2D mesh created in Matlab with the Nodes numbering and their coordinates and the elements numbering and their connectivities, all these Datas in vectors and matrices, the element type is a four noded linear quadrilateral elements, the mesh is not regular in general, i would like to embed cohesive elements between some or all elements in the mesh, mean that each element is surounded by cohesive zero thickness elements over all its four edges, so could any one

Good mouring, I am using Abaqus to model a antiplane shear loading of a crack in a plate under planestress condition, therefore i have defined the geometry of the problem with thier mechanical properties and loading; i defind a crack i run the analysis i got this following umbarassing errormessages:

The vector components of the trshr load for active translational degrees of freedom cannot all be zero

Good mourning, i am using Abaqus software to inverstigate a crack propagation problem using Abaqus, in this regards i have created a seam crack iner the geometrie which is a plate  under a plane stress condition, my problem is how to mesh around the crack tip in order to have a regular mesh around the crack tip so i can evaluate J integral for multiple contours, the Abaqus documentation mention the swept meshing technique but i coudn't find something about a 2D problem since the sweapt meshing technique nead to mesh a section and swept it over the rest of the body, and in 2d problem we have