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  1. hermatician

    Elements near Cohesive elements deform asymmetrically in a three point bend 2D model

    Dear All, I am modelling a 3 point bend specimen with Cohesive elements tied to the upper and lower halves of the specimen in 2d. The problem is that the CZ elements perform properly only for a combination of element sizes, i.e. a combination of element size of structure and CZ elements, for...
  2. hermatician

    I want to use GTN with cleavage criteria with uSDFLD subroutine

    Dear All, In brief my problem is that in the axissymmetric model of a ball pressing a disk; I am getting load extracted as reaction force at RP of ball is higher than the experimental values. The material property is correct; extrapolated to 1 strain contact is also supposedly correct penalty...
  3. hermatician

    small punch tests axissymmetric

    Dear All, In brief my problem is that in the axissymmetric model of a ball pressing a disk; I am getting load extracted as reaction force at RP of ball is higher than the experimental values. The material property is correct; extrapolated to 1 strain contact is also supposedly correct penalty...
  4. hermatician

    I want to use GTN with cleavage criteria with uSDFLD subroutine

    Dear All, I would like to have a simulation in which I can model both ductile and cleavage damage. For that I want GTN damage to run for some time and then I am planning to define a criteria based on f* of GTN to define cleavage. or if I want to implement GTN without using porous material...
  5. hermatician

    small punch tests axissymmetric

    Dear All, In brief my problem is that in the axissymmetric model of a ball pressing a disk; I am getting load extracted as reaction force at RP of ball is higher than the experimental values. The material property is correct; extrapolated to 1 strain contact is also supposedly correct penalty...
  6. hermatician

    Assigning material property based on stresses

    I am modeling a body in which based on max shear stress the elements will change their material property. Please suggest how can I do it? Can it be done without using subroutines( by python scripts) if not which subroutine, I should follow. Any help will be appreciated.
  7. hermatician

    FEM coding of solids

    Hello everyone :), I am trying to write a code for FEA of solid structures (steels). Initially I am planning to get nodes coordinates and connectivities from ABAQUS input file and solve them/ For that I am considering 20 noded brick element with 6 dofs per node (three displ and three...
  8. hermatician

    setting of springs

    hey, i am working on VHCF behavior of springs,and i wanna know that why exactly the spring has to be given a set? my springs were set by the manufacturer and thus it should not have change in length after compressing but it had a change after compression ??? i cannot think as the spring is...
  9. hermatician

    FEM analysis of helical springs, with pitch angle, lenght , diameter

    hi all, I have to analyse, by FEM, the stress and stroke change of spring, in compression fatigue. please help me, how to make a cylindrical structure of spring in ABAQUS?? 2. how to set pitch length, angle and the biggest question, 3. how to set pressure which is not exactly on the...

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