As a crucial component for temporary blocking of layer segments in the segmental fracturing process, bridge plugs are difficult to unseal by conventional methods and may cause major downhole accidents if not handled properly. In this paper, nanofluidic self-heating unsealing rubber cylinder is designed, which equipped with sandwich inside cylinder, consisting system an annular flexible heater. ...

Abstract In this study, a comprehensive analysis of visco-hyper-elastic thick soft arches under an external time-independent as well time-dependent loads is presented from bending and internal resonance phenomenon perspectives. Axial, transverse rotation motions are considered for modelling the arch in framework Mooney–Rivlin Kelvin–Voigt schemes third-order shear deformable models. The assumed...

Abstract In this work a number of selected, isotropic, invariant-based hyperelastic models are analyzed. The considered constitutive relations hyperelasticity include the model by Gent (G) and its extension, so-called generalized (GG), exponential-power law (Exp-PL) power (PL). material parameters under study have been identified for eight different experimental data sets. As it has demonstrate...

Soft materials like tissues, prosthetics, gels and rubber are usually modeled as incompressible hyperelastic. The use of these in soft robotics surgical implants necessitates analysis their finite deformations. We study here plane-strain flexural deformations functionally graded, isotropic Mooney-Rivlin rectangular beams into circular arcs by using a member Ericksen’s family universal solutions...

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...

Abstract In this study, the time-dependent mechanics of multilayered thick hyperelastic beams are investigated for first time using five different types shear deformation models modelling beam (i.e. Euler–Bernoulli, Timoshenko, third-order, trigonometric and exponential deformable models), together with von Kármán geometrical nonlinearity Mooney–Rivlin strain energy density. The laminated is as...