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Strain gradient and generalized continua obtained by homogenizing frame lattices

Abstract : We determine the effective behavior of periodic structures made of welded elastic bars. Taking into account the fact that flexural and torsional stiffnesses are much smaller than the extensional one we overpass classical homogenization formula and obtain totally different types of effective energies. We work in the framework of linear elasticity. We give different examples of two dimensional or three dimensional micro-structures which lead to generalized 1D, 2D or 3D continua like Timoshenko beam, Mindlin-Reissner plate, strain gradient, Cosserat, or micromorphic continua.
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Contributor : Pierre Seppecher Connect in order to contact the contributor
Submitted on : Thursday, July 18, 2019 - 3:28:00 PM
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Houssam Abdoul-Anziz, Pierre Seppecher. Strain gradient and generalized continua obtained by homogenizing frame lattices. Mathematics and Mechanics of Complex Systems, International Research Center for Mathematics & Mechanics of Complex Systems (M&MoCS),University of L’Aquila in Italy, 2018, ⟨10.2140/memocs.2018.6.213⟩. ⟨hal-01672898v2⟩



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