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Nonlinear variational methods for estimating effective properties of multiscale materials
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- Lukkassen, Dag (author)
- Narvik University College, Narvik, Norway. Norut Narvik, Narvik, Norway
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- Meidell, Annette (author)
- Narvik University College, Narvik, Norway
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- Persson, Lars-Erik (author)
- Luleå tekniska universitet,Matematiska vetenskaper
- Narvik University College, Narvik, Norway Norut Narvik, Narvik, Norway Narvik University College, Narvik, Norway (creator_code:org_t)
- 2009-09-14
- 2010
- English.
- In: Nonlinear analysis and variational problems. - Berlin : Encyclopedia of Global Archaeology/Springer Verlag. - 9781441901583 ; , s. 367-414
- Book chapter (other academic/artistic)
Abstract
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- We consider homogenization of sequences of integral functionals with natural growth conditions. Some means are analyzed and used to discuss some fairly new bounds for the homogenized integrand corresponding to integrands which are periodic in the spatial variable. These bounds, which are obtained by variational methods, are compared with the nonlinear bounds of Wiener and Hashin-Shtrikman type. We also point out conditions that make our bounds sharp. Several applications are presented. Moreover, we also discuss bounds for some linear reiterated two-phase problems with m different micro-levels in the spatial variable. In particular, the results imply that the homogenized integrand becomes optimal as m turns to infinity. Both the scalar case (the conductivity problem) and the vector-valued case (the elasticity problem) are considered. In addition, we discuss bounds for estimating the effective behavior described by homogenizing a problem which is a generalization of the Reynold equation.
Subject headings
- NATURVETENSKAP -- Matematik -- Matematisk analys (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Mathematical Analysis (hsv//eng)
Keyword
- Nonlinear Bound
- Effective Property
- Integral Functional
- Sharp Estimate
- Power Type
- Matematik
- Mathematics
Publication and Content Type
- vet (subject category)
- kap (subject category)
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