Hyperelasticity
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. Topological sensitivity analysis for a two-parameter Mooney-Rivlin hyperelastic constitutive model
The Topological Sensitivity Analysis (TSA) is represented by a scalar function, called Topological Derivative (TD), that gives for each point of the domain the sensitivity of a given cost function when an infinitesimal hole is created. Applications to the Laplace, Poisson, Helmoltz, Navier, Stokes and Navier-Stokes equations can be found in the literature. I
Latin American Journal of Solids and Structures. Publicado em: 2010
-
2. Modelos constitutivos para materiais hiperelásticos: estudo e implementação computacional / Constitutive models for hyperelastic materials: study and computational implementation
The main objective of this work is to implement nonlinear hyperelastic constitutive models in a computational code of geometrically nonlinear analysis of shells. For this purpose, concepts of linear and tensor algebras, kinematics, strain, stress, balances, variational principles, numerical methods and hyperelasticity are necessary. Such program uses the pos
Publicado em: 2008
-
3. Topological sensivity analysis in problems with geometric non-linearities and nonlinear nearly-incompressible hiperelasticity / Analise de sensibildade topologica em problemas de não-linearidade geometrica e hiperelasticidade não-linear quasi-incompressivel
The aim of the present work is to optimize the topology of elasticity problems with geometric nonlinearities (large displacement and rotation) and material nonlinearities, in this case, nonlinear nearly-incompressible hyperelasticity applying the concept of Topological Sensitivity Analysis (TSA) and a total Lagrangian formulation. The TSA results in a scalar
Publicado em: 2006
-
4. Abnormal copper metabolism and deficient lysyl oxidase activity in a heritable connective tissue disorder.
Biochemical abnormalities were studied in two brothers with bladder divericulas, inguinal hernias, slight skin laxity, and hyperelasticity and skeletal abnormalities including occipital exostoses. Lysyl oxidase activity was low in the medium of cultured skin fibroblasts, this abnormality being accompanied by reduced conversion of the newly synthesized collag