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Axisymmetric bifurcations of thick spherical shells under inflation and compression
(Elsevier, 2012-10-22)
Incremental equilibrium equations and corresponding boundary conditions for an isotropic, hyperelastic and incompressible material are summarized and then specialized to a form suitable for the analysis of a spherical shell ...
On the treatment of non-solvable implicit constitutive relations in solid mechanics
(Sringer, 2015)
We report results concerning the treatment of elastic bodies described by implicit constitutive relations which are not solvable, in the sense of expressing the stresses as functions of the strains or vice versa. Motivated ...
A numerical investigation of the mechanics of intracranial aneurysms walls: Assessing the influence of tissue hyperelastic laws and heterogeneous properties on the stress and stretch fields
(Elsevier, 2022-10-10)
Numerical simulations have been extensively used in the past two decades for the study of intracranial aneurysms (IAs), a dangerous disease that occurs in the arteries that reach the brain and affect overall 3.2 % of a ...
Mechanical Assessment and Hyperelastic Modeling of Polyurethanes for the Early Stages of Vascular Graft DesignEvaluación mecánica y modelado hiperelástico de poliuretanos para las primeras etapas del diseño de injertos vasculares
(Materials, 06/11/2020)
The material design of vascular grafts is required for their application in the health sector. The use of polyurethanes (PUs) in vascular grafts intended for application in the body appears to be adequate due to the fact ...
A generalized finite-strain damage model for quasi‐incompressible hyperelasticity using hybrid formulation
(John Wiley & Sons Ltd, 2016-03)
A new generalized damage model for quasi-incompressible hyperelasticity in a total Lagrangian finite-strain framework is presented. A Kachanov-like reduction factor (1 - D) is applied on the deviatoric part of the hyperelastic ...
Constitutive models for biodegradable thermoplastic ropes for ligament repair
(ELSEVIER SCI LTDOXFORD, 2013-08-02)
The concept behind a biodegradable ligament device is to temporarily replace the biomechanical functions of the ruptured ligament, while it progressively regenerates its capacities. However, there is a lack of methods to ...
On the feasibility of identifying first order ogden constitutive parameters of gelatin gels from flat punch indentation tests
(Taylor & Francis, 2015-07-15)
The feasibility of extracting First Order Ogden constitutive parameters of gelatin gels from experimental flat punch indentation curves is analyzed. Eight gelatin gel samples of different formulations are evaluated. ...