Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. hermatician

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

    here is the imagehttps://files.engineering.com/getfile.aspx?folder=e66b66ed-46f7-4891-b170-6b713d69c12b&file=CZbend.jpg
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. hermatician

    Assigning material property based on stresses

    I have a body of steel in which based on shear hydride will nucleate, so i have created orphan mesh and a code to assign hydride properties but this code should take the data from results in each increment as explicit algorithm.
  8. 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.
  9. 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...
  10. hermatician

    setting of springs

    thanks for the best answer I wanted. and thanks all. specially Israelkk.
  11. hermatician

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

    yes exactly,I too did not understand that whats the point in compressing but not deforming plastically....... but they r saying that they do not want much change in length and accrding to them, in machine the displc is say 12mm so they r comressing to 11mm so they sud not have problem, but i...
  12. hermatician

    setting of springs

    Thanks for your reply, i got some idea about what i needed from your reply, i guess. provider of spring has done solid compression( not exactly but has compressed to 12mm ( to get a free length of 37mm apprx) well should not give these details here. he compressed it thrice i guess, but what i...
  13. hermatician

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

    well Mike I am working with prof Kaiser and Prof Brita Pyttel
  14. hermatician

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

    well, i will first explain my task I am working on very high cycle fatigue behavior of helical compression springs, right now I m involved in FEM modeling of it. I am not concerned with manufacturing. we have a special machine where we put around 576 springs of different rate/stress levels, and...
  15. hermatician

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

    hey mike, thanks for your answer, but I have grounded surface at the top and bottom of the spring and there i can have pressure, but ja its actually a different machine in which 300 springs are being tested together and i have been going through many dramas with these springs. as you said you...
  16. 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...
  17. 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...

Part and Inventory Search

Back
Top