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Geometric linearization of theories for incompressible elastic materials and applications
ID
Jesenko, Martin
(
Author
),
ID
Schmidt, Bernd
(
Author
)
URL - Source URL, Visit
https://www.worldscientific.com/doi/abs/10.1142/S0218202521500202
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Abstract
We derive geometrically linearized theories for incompressible materials from nonlinear elasticity theory in the small displacement regime. Our nonlinear stored energy densities may vary on the same (small) length scale as the typical displacements. This allows for applications to multiwell energies as, e.g. encountered in martensitic phases of shape memory alloys and models for nematic elastomers. Under natural assumptions on the asymptotic behavior of such densities we prove Gamma-convergence of the properly rescaled nonlinear energy functionals to the relaxation of an effective model. The resulting limiting theory is geometrically linearized in the sense that it acts on infinitesimal displacements rather than finite deformations, but will in general still have a limiting stored energy density that depends in a nonlinear way on the infinitesimal strains. Our results, in particular, establish a rigorous link of existing finite and infinitesimal theories for incompressible nematic elastomers.
Language:
English
Keywords:
nonlinear elasticity
,
geometrically linear theories
,
incompressibility
,
Gamma-convergence
,
nematic elastomers
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FGG - Faculty of Civil and Geodetic Engineering
Year:
2021
Number of pages:
Str. 829-860
Numbering:
Vol. 31, iss. 4
PID:
20.500.12556/RUL-135490
UDC:
51
ISSN on article:
0218-2025
DOI:
/10.1142/S0218202521500202
COBISS.SI-ID:
92180483
Publication date in RUL:
16.03.2022
Views:
586
Downloads:
39
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Title:
Mathematical models and methods in applied sciences
Shortened title:
Math. models methods appl. sci.
Publisher:
World Scientific
ISSN:
0218-2025
COBISS.SI-ID:
1580821
Secondary language
Language:
Slovenian
Keywords:
matematika
,
gradbeništvo
,
nelinearna teorija elastičnosti
,
geometrijsko linearne teorije
,
nestisljivost
,
gama-konvergenca
,
nematični elastomeri
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