3 point bending test on a beam
I am trying to simulate a 3 point bending test on a Beam with the following dimensions: L= 125 mm, W= 12.7 mm and T=3.2 mm.
the span length is 51.2 mm ( the distance between the 2 supports).
I took the advantage of symmetry and draw my geometry in space claim as following:
Here the length of the beam is 62.5mm.
Here I split the face for the support which is far 36.9 mm from the origin.
I am using the printed ABS orthotropic material properties as shown in the pictures, which is found in the literature.
I assigned the material to my geometry and created the mesh with element size of 2mm.
I applied the boundary conditions as remoted displacement at the top end of the beam where all components are zero except in y direction it is -15mm
also remote displacement at the support where all components are free except Y is zero. However, I applied frictionless support at each face to get solution for full model not only the symmetry part.
Here are the results I obtained. but these results are not the desired. Could you please assist me in finding out what is the mistake here?
is it a mesh problem or Boundary conditions? Also, I would like to confirm if solid rods are modeled as rollers instead of splitting the face, they will not affect the results right?
Thank you in advance.