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- W2782817235 abstract "Many natural and man-made cellular bodies are light-weight, shock-absorbing, multifunctionalmaterials, capable of undertaking large elastic deformations. These propertiesare due to a complex system of local deformations which can lead to changesin the material properties as the deformation progresses, but their study is nontrivialsince the corresponding stresses are non-trivial functions of volume fraction,micro-geometry, and material properties of the components. For cellular bodies ofhyperelastic material, several main factors determine the magnitude of the stresslevel, including the cell geometry, the cell wall thickness, and the presence of cellinclusions. In this thesis, two nonlinear elastic parameters are identified, namelya nonlinear elastic modulus and a nonlinear Poisson’s ratio, which are defined interms of the large stresses and strains in the elastic cell walls, and their utility inestimating how different competing factors may contribute to the complex mechanicalbehaviour of cellular structures is investigated. For the numerical analysis, finiteelement simulations of periodic, honeycomb-like structures with a small number of square, diamond, or hexagonal cells made from a nonlinear hyperelastic material arepresented. This study offers important insight into the fundamental behaviour ofcellular structures of nonlinear elastic material under large strains, and contributesto illuminate key mechanical effects that are not visible under small strains." @default.
- W2782817235 created "2018-01-26" @default.
- W2782817235 creator A5053731456 @default.
- W2782817235 date "2017-01-01" @default.
- W2782817235 modified "2023-09-27" @default.
- W2782817235 title "The nonlinear elasticity of cellular bodies under large deformations" @default.
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- W2782817235 hasPublicationYear "2017" @default.