Dear Profesor Goicolea,
In fact, I agree at all, I was talking like FEA user, but not very
rigorous -- I remember in the school the diference between the"Midling Beam
element" that allows transverse shear deformation where a plane initially
normal to the midsurface remains plane "but not necessarily normal", and the
standard beam element, also know as an Euler Beam element, that can model
linearly varying bending moment but does not account for transverse shear
deformation .... a mistake is human!.
Best regards,
Blas.
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De: Jose M. Goicolea[SMTP:[log in to unmask]]
Enviado el: martes 17 de julio de 2001 18:20
Para: Blas Molero Hidalgo
CC: [log in to unmask]
Asunto: Re: RV: Help With Beam Elements
With regard to this response, one precision:
On Tue, 17 Jul 2001, Blas Molero Hidalgo wrote:
...
> life, Beam elements follows the classical Beam theory (plane sections
notmal
> to the centroidal axis are assumed to remain plane and normal to the
> deflected axis, cross section is assumed to be compact, etc..) and due to
...
plane sections do remain plane in "most" beam formulations, but precisely
shear-deformable beam elements, which were the base of this query about
effective shear area, will NOT remain normal to the deflected axis (this
effect is precisely what originates shear deformation).
In the above, I say "most" because some (advanced) beam formulations may
take into account warping effects e.g. from torsion.
Regards.
--
Jose M. Goicolea
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