Abaqus results
Abaqus results
(OP)
Hi,
i try to simulate a 3 points bending of a glass plate with abaqus.
force 1kN !
young modulus = 7e10 Pa
Poisson's ratio = 0.22
- the plate is square (30 cm) , thickness 8.72 mm
- i use 3D extruded solid
- for the load i can't create a line load so i replace this load by pressure in a thin surface (2mm*30cm) applied in the center of the plate
- C3D8R element type
but the results are strange:
the maximum displacement is 0.672 mm !
is that realistic ? 1kN and just 0.672 mm of central displacement ?
thanks ...
i try to simulate a 3 points bending of a glass plate with abaqus.
force 1kN !
young modulus = 7e10 Pa
Poisson's ratio = 0.22
- the plate is square (30 cm) , thickness 8.72 mm
- i use 3D extruded solid
- for the load i can't create a line load so i replace this load by pressure in a thin surface (2mm*30cm) applied in the center of the plate
- C3D8R element type
but the results are strange:
the maximum displacement is 0.672 mm !
is that realistic ? 1kN and just 0.672 mm of central displacement ?
thanks ...





RE: Abaqus results
Doublecheck your units too. Did you use at least 4 elements through the tickness?
RE: Abaqus results
can i have a analytical solution for this problem ?
another question is : can i use reissner mindlin theory ? because here i have line load ... not a uniform load at the upper and lower faces ...
for unit i use the international system units ...
i have exactly 4 elements through the thickness...
RE: Abaqus results
1000*300^3/(48*7e4*300*8.72**3/12) = 0.48 mm.
For a 'wide beam' or plate, you will be working in plane strain more than plane stress, so I would guess the plate to be more stiff, when in your (finite element) case it is less.
Stress will be close to 40MPa so you'll break the glass first I'm afraid.
RE: Abaqus results