Abstract
A multidomain macro-hybrid mixed variational subpotential approach of models in continuum mechanics is developed. Variational principles of mass conservation, balance momentum and energy, as well as material constitutive relations, are formulated as subpotential subdifferential evolution systems. Under the basis of variational divergence formulae and subdifferential generalized boundary conditions, variational mixed initial/boundary-value inclusion problems are established in reflexive Banach trajectory real functional frameworks. Multidomain motion velocity, mass conservation density, material constitutive stress, deformation porosity as well as balance internal energy evolution coupled variational mechanical systems are achieved. As a distinctive modeling feature, multidomain synchronizing transmission constraints are implemented in terms of dual Lagrangian internal boundary subpotential subdifferential inclusions. Lastly, evolution internal variational approximations, in general, for nonconforming macro-hybrid mixed finite element spatial discretizations as well as semi-implicit time marching fully discrete schemes are briefly discussed.
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Alduncin, G. Mixed variational continuum mechanics modeling: a multidomain subpotential approach. Arch Appl Mech 92, 3381–3404 (2022). https://doi.org/10.1007/s00419-022-02242-x
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DOI: https://doi.org/10.1007/s00419-022-02242-x
Keywords
- Set-valued variational formulation
- Multidomain mixed initial boundary-value problem
- Continuum mechanics modeling
- Maximal monotone operator
- Subpotential subdifferential
- Lagrangian internal boundary dual transmission