Non-pneumatic tire has been widely used due to their advantages of no run-flat, need air maintenance, low rolling resistance, and improvement passengers comfort its better shock absorption. It variety application in the military vehicle, earthmovers, lunar rover, stair climbing vehicles etc. Recently UPTIS (Unique Puncture-Proof Tire System) non pneumatic introduced for passenger vehicles. In t...

ABSTRACT Soft materials, such as soft biological tissue and silicone rubber, are non-linear materials which require the classical uniaxial biaxial tensile testing methods for characterisation. Unfortunately, in special cases, tissue, samples smaller than 10 mm χ size these produce unwanted stress strain gradients due to fastening techniques associated with methods. Micro-indentation is proposed...

Abstract The present study aims to formulate a new multiscale constitutive model of human trabecular bone. bone was modelled as nonlinear viscoelastic material. effects single trabeculae were considered by means hereditary integral in which stress depends on time and strain, while the elastic response described hyperelastic Mooney–Rivlin model. cuboid sample extracted from femoral head during h...

In this study, we explore an a new crosslinker (bis-butyl succinate, BBS) with terminal alkyne group to react glycidyl azide polymer-based polyurethane (original PU) via “azide-alkyne” click reaction, which has supported enhancing mechanical properties and cross-link densities of modified PUs BBS. Besides, been designed synthesized successfully esterification reaction can incorporate the origin...

Static deflection as well as free and forced nonlinear vibration of thin square plates made of hyperelastic materials are investigated. Two types of materials, namely rubber and soft biological tissues, are considered. The involved physical nonlinearities are described through the Neo-Hookean, Mooney-Rivlin, and Ogden hyperelastic laws; geometrical nonlinearities are modeled by the Novozhilov n...

We analytically analyze finite plane strain twisting deformations of a hollow cylinder made of an isotropic and inhomogeneousMooney-Rivlinmaterial withmaterial moduli varying in the radial direction. The cylinder is deformed by applying either tangential tractions on the inner surface and tangential displacements on the outer surface or vice versa. The radial variation of the moduli is found th...

PURPOSE The aim of this study is to propose a method to construct corneal biomechanical model which is the foundation for simulation of corneal microsurgery. METHODS Corneal material has two significant characteristics: hyperelastic and viscoelastic. Firstly, Mooney-Rivlin hyperelastic model of cornea obtained based on stored-energy function can be simplified as a linear equation with two unk...

The large deformation of the human breast threatens proper nodules tracking when the subject mammograms are used as pre-planning data for biopsy. However, techniques capable of accurately supporting the surgeons during biopsy are missing. Finite element (FE) models are at the basis of currently investigated methodologies to track nodules displacement. Nonetheless, the impact of breast material ...

Assuming that the disc material can be modeled either as Mooney–Rivlin or as Hookean and the steel ring enclosing the disc as Hookean, the energy release rates as a function of the crack length are evaluated and compared. Two loadings are considered––one in which the surface of the star shape hole in the disc is loaded by a uniform pressure and the other in which the temperature of the composit...