Modeling Curved Beam Bending
Modeling Curved Beam Bending
(OP)
Hi guys,
I am trying to model the behavior of a carbon fiber/epoxy curved beam with a 90 degree bend subjected to an opening moment at its ends. I am doing this with SR4 shell elements in Abaqus standard. But the resulting stiffness (i.e., moment/curvature) of the model always comes out to be 2 to 3 times higher than my experimental results. I am wondering if anyone has done something similar and can give me a hint. Am I even using the correct element type? Many thanks.
ZhiMing
I am trying to model the behavior of a carbon fiber/epoxy curved beam with a 90 degree bend subjected to an opening moment at its ends. I am doing this with SR4 shell elements in Abaqus standard. But the resulting stiffness (i.e., moment/curvature) of the model always comes out to be 2 to 3 times higher than my experimental results. I am wondering if anyone has done something similar and can give me a hint. Am I even using the correct element type? Many thanks.
ZhiMing





RE: Modeling Curved Beam Bending
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Greg Locock
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RE: Modeling Curved Beam Bending
Then please describe in detail the loads and boundary conditions on your FEM, the material properties used, the solution type (linear, nonlinear).
If the deflection is large, depending on the test configuration, the loading points and moments can change.
RE: Modeling Curved Beam Bending
A similar effect, with variable magnitudes, will take place with other shapes (hollow square, where the sides will bend, but also open profiles, etc.).
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RE: Modeling Curved Beam Bending
RE: Modeling Curved Beam Bending