# Semicontinuity theorem in the micropolar elasticity

ESAIM: Control, Optimisation and Calculus of Variations (2010)

- Volume: 16, Issue: 2, page 337-355
- ISSN: 1292-8119

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topTambača, Josip, and Velčić, Igor. "Semicontinuity theorem in the micropolar elasticity." ESAIM: Control, Optimisation and Calculus of Variations 16.2 (2010): 337-355. <http://eudml.org/doc/250751>.

@article{Tambača2010,

abstract = {
In this paper we investigate the equivalence of the sequential
weak lower semicontinuity of the total energy functional and the quasiconvexity of the
stored energy function of the nonlinear micropolar elasticity. Based on techniques of Acerbi and Fusco [Arch. Rational Mech. Anal.86 (1984) 125–145] we extend the result from Tambača and Velčić [ESAIM: COCV (2008) DOI: 10.1051/cocv:2008065] for energies that
satisfy the growth of order p≥ 1. This result is the main
step towards the general existence theorem for the nonlinear micropolar
elasticity.
},

author = {Tambača, Josip, Velčić, Igor},

journal = {ESAIM: Control, Optimisation and Calculus of Variations},

keywords = {Micropolar elasticity; existence theorem; quasiconvexity; semicontinuity; existence; stored energy function; conformally invariant curvature},

language = {eng},

month = {4},

number = {2},

pages = {337-355},

publisher = {EDP Sciences},

title = {Semicontinuity theorem in the micropolar elasticity},

url = {http://eudml.org/doc/250751},

volume = {16},

year = {2010},

}

TY - JOUR

AU - Tambača, Josip

AU - Velčić, Igor

TI - Semicontinuity theorem in the micropolar elasticity

JO - ESAIM: Control, Optimisation and Calculus of Variations

DA - 2010/4//

PB - EDP Sciences

VL - 16

IS - 2

SP - 337

EP - 355

AB -
In this paper we investigate the equivalence of the sequential
weak lower semicontinuity of the total energy functional and the quasiconvexity of the
stored energy function of the nonlinear micropolar elasticity. Based on techniques of Acerbi and Fusco [Arch. Rational Mech. Anal.86 (1984) 125–145] we extend the result from Tambača and Velčić [ESAIM: COCV (2008) DOI: 10.1051/cocv:2008065] for energies that
satisfy the growth of order p≥ 1. This result is the main
step towards the general existence theorem for the nonlinear micropolar
elasticity.

LA - eng

KW - Micropolar elasticity; existence theorem; quasiconvexity; semicontinuity; existence; stored energy function; conformally invariant curvature

UR - http://eudml.org/doc/250751

ER -

## References

top- E. Acerbi and N. Fusco, Semicontinuity problems in the calculus of variations. Arch. Rational Mech. Anal.86 (1984) 125–145. Zbl0565.49010
- I. Aganović, J. Tambača and Z. Tutek, Derivation and justification of the models of rods and plates from linearized three-dimensional micropolar elasticity. J. Elasticity84 (2006) 131–152. Zbl1158.74401
- J.M. Ball, Convexity conditions and existence theorems in nonlinear elasticity. Arch. Rational Mech. Anal.63 (1976/1977) 337–403. Zbl0368.73040
- P.G. Ciarlet, Mathematical elasticity, Volume I: Three-dimensional elasticity. North-Holland Publishing Co., Amsterdam (1988). Zbl0648.73014
- E. Cosserat and F. Cosserat, Théorie des corps déformables. Librairie Scientifique A. Hermann et Fils (Translation: Theory of deformable bodies, NASA TT F-11 561, 1968), Paris (1909). Zbl40.0862.02
- B. Dacorogna, Direct methods in the calculus of variations. Second Edition, Springer (2008). Zbl1140.49001
- A.C. Eringen, Microcontinuum Field Theories, Volume 1: Foundations and Solids. Springer-Verlag, New York (1999). Zbl0953.74002
- I. Hlaváček and M. Hlaváček, On the existence and uniqueness of solution and some variational principles in linear theories of elasticity with couple-stresses. I. Cosserat continuum. Appl. Mat.14 (1969) 387–410. Zbl0195.27003
- J. Jeong and P. Neff, Existence, uniqueness and stability in linear Cosserat elasticity for weakest curvature conditions. Math. Mech. Solids (2008) DOI: . Zbl1197.74009DOI10.1177/1081286508093581
- J. Jeong, H. Ramezani, I. Münch and P. Neff, Simulation of linear isotropic Cosserat elasticity with conformally invariant curvature. ZAMM Z. Angew. Math. Mech. (submitted). Zbl1167.74004
- P.M. Mariano and G. Modica, Ground states in complex bodies. ESAIM: COCV (2008) DOI: . Zbl1161.74006DOI10.1051/cocv:2008036
- N.G. Meyers, Quasi-convexity and lower semi-continuity of multiple variational integrals of any order. Trans. Amer. Math. Soc.119 (1965) 125–149. Zbl0166.38501
- P. Neff, On Korn's first inequality with nonconstant coefficients. Proc. R. Soc. Edinb. Sect. A132 (2002) 221–243. Zbl1143.74311
- P. Neff, Existence of minimizers for a geometrically exact Cosserat solid. Proc. Appl. Math. Mech.4 (2004) 548–549.
- P. Neff, A geometrically exact Cosserat-shell model including size effects, avoiding degeneracy in the thin shell limit. Part I: Formal dimensional reduction for elastic plates and existence of minimizers for positive Cosserat couple modulus. Cont. Mech. Thermodynamics16 (2004) 577–628. Zbl1158.74419
- P. Neff, The Cosserat couple modulus for continuous solids is zero viz the linearized Cauchy- stress tensor is symmetric. ZAMM Z. Angew. Math. Mech.86 (2006) 892–912. Zbl1104.74007
- P. Neff, Existence of minimizers for a finite-strain micromorphic elastic solid. Proc. Roy. Soc. Edinb. A136 (2006) 997–1012. Zbl1106.74010
- P. Neff, A finite-strain elastic-plastic Cosserat theory for polycrystals with grain rotations. Int. J. Eng. Sci.44 (2006) 574–594. Zbl1213.74032
- P. Neff, A geometrically exact planar Cosserat shell-model with microstructure. Existence of minimizers for zero Cosserat couple modulus. Math. Meth. Appl. Sci.17 (2007) 363–392. Zbl1119.74029
- P. Neff and K. Chelminski, A geometrically exact Cosserat shell-model for defective elastic crystals. Justification via Γ-convergence. Interfaces and Free Boundaries9 (2007) 455–492. Zbl1137.74014
- P. Neff and S. Forest, A geometrically exact micromorphic model for elastic metallic foams accounting for affine microstructure. Modelling, existence of minimizers, identification of moduli and computational results. J. Elasticity87 (2007) 239–276. Zbl1206.74019
- P. Neff and J. Jeong, A new paradigm: the linear isotropic Cosserat model with conformally invariant curvature. ZAMM Z. Angew. Math. Mech. (submitted). Zbl1157.74002
- P. Neff and I. Münch, Curl bounds Grad on SO(3). ESAIM: COCV14 (2008) 148–159. Zbl1139.74008
- W. Pompe, Korn's first inequality with variable coefficients and its generalizations. Commentat. Math. Univ. Carolinae44 (2003) 57–70. Zbl1098.35042
- J. Tambača and I. Velčić, Derivation of a model of nonlinear micropolar plate. Ann. Univ. Ferrara Sez. VII Sci. Mat.54 (2008) 319–333. Zbl1195.74106
- J. Tambača and I. Velčić, Existence theorem for nonlinear micropolar elasticity. ESAIM: COCV (2008) DOI: . Zbl05678714DOI10.1051/cocv:2008065

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