Applying periodic boundary condition
Attached paper supplies detailed procedure and necessary scipt for applying PBC.
periodic boundary condition
Is energy conservation satisfied in the current deformation application schemes in molecular dynamic simulations?
In our recent paper, we examined the energy conservation for the current schemes of applying active deformation in molecular dynamics (MD) simulations. Specifically, two methods are examined. One is scaling the dimension of the simulation box and the atom positions via an affine transformation, suitable for the periodic system. The other is moving the rigid walls that interact with the atoms in the system, suitable for the non-periodic system.
Applying Periodic Boundary Conditions(PBC) in Abaqus
Hi all,
I am looking for some reference on procedures for applying PBC in abaqus? I coud find some journal articles for the equation, but I am unaware of applying this into Abaqus under displacement laoding conditions..
any help in this regard would be appreciated greatly..
Thanks,
Bernad
necessiscity of periodic boundary conditions for uniaxial loading
Hi,
I observed that with
periodic boundary conditions on unit concrete unit cell, when uniaxial load is applied structure
behaves as if it is constrained to move in lateral direction, when
shear or other traction laoding is applied it has displacement
compatible behavior i.e, parallel edges has periodic deformation
behavior. With these above behavior can I conclude that for uniaxial
loading I need not apply periodic BCs and simply applying roller is
sufficient on lateral edges or there is no need to apply and periodic
BCs for uniaxial loading.
Bloch-periodic boundary conditions in classical and enriched FEM
In the attached paper (accepted for publication), we present enriched FE formulations to impose Bloch-periodic boundary conditions. Bloch-periodic BCs arise in the description of wave-like phenomena in periodic media: periodic composites, Schrodinger equation in quantum mechanics, photonic band-gap materials, etc. For a perspective, see the J-Club on elastodynamic bandgaps and metamaterials that was organized by Biswajit Banerjee