Thank you very much for all help.
Yes I did use the solid mechanics model to do my study. I want to analysis the buckling of a drill string which should look like a hollow tube (or shell?). But I start with solid mechanics because it is easier. I have many difficulties with it. First one: can you tell me how to set up two boundary conditions? One end is fixed at the bottom and I used fixed contraint. I think this one is ok. Another end should be fixed at x and y direction and the top face of the beam could not rotate. But in z-axis, it is free to slide. I am not sure if I explain it clearly. I tried to use prescribed displacement but the top face is rotated.
Thanks again.
Yes I did use the solid mechanics model to do my study. I want to analysis the buckling of a drill string which should look like a hollow tube (or shell?). But I start with solid mechanics because it is easier. I have many difficulties with it. First one: can you tell me how to set up two boundary conditions? One end is fixed at the bottom and I used fixed contraint. I think this one is ok. Another end should be fixed at x and y direction and the top face of the beam could not rotate. But in z-axis, it is free to slide. I am not sure if I explain it clearly. I tried to use prescribed displacement but the top face is rotated.
Thanks again.
