University of Galway Support Services: Recent submissions
Now showing items 1-20 of 5792
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Singular travelling waves in soft viscoelastic solids of rate type
(Elsevier, 2023-09-25)We consider shear wave propagation in soft viscoelastic solids of rate type. Based on objective stress rates, the constitutive model accounts for finite strain, incompressibility, as well as stress- and strain-rate ... -
An atlas of the heterogeneous viscoelastic brain with local power-law attenuation synthesised using Prony-series
(Elsevier, 2023-09-13)This review addresses the acute need to acknowledge the mechanical heterogeneity of brain matter and to accurately calibrate its local viscoelastic material properties accordingly. Specifically, it is important to compile ... -
Programmable wrinkling for functionally-graded auxetic circular membranes
(Elsevier, 2023-07-13)Materials with negative Poisson¿s ratio, also known as auxetic materials, display exotic properties such as expansion in all directions under uni-axial tension. For their unique properties, these materials find a broad ... -
Assessing ISO 18404 standard applicability in the service sector: a qualitative study
(Emerald, 2024-01-18)This research aims to establish the applicability of the International Organisation for Standardisation (ISO) 18404 standard to the service sector, identify any required amendments and identify the critical success factors ... -
Global perspectives on operational excellence: unveiling critical failure factors and sustainable pathways
(Emerald, 2024-03-14)Purpose The purpose of this global study is to investigate the critical failure factors (CFFs) in the deployment of operational excellence (OPEX) programs as well as the key performance indicators (KPIs) that can be used ... -
Canceling the elastic Poynting effect with geometry
(American Physical Society, 2023-05-24)The Poynting effect is a paragon of nonlinear soft matter mechanics. It is the tendency (found in all incompressible, isotropic, hyperelastic solids) exhibited by a soft block to expand vertically when sheared horizontally. ... -
An investigation into time pressure, group cohesion and decision making in software development groups
(Australasia Conference on Information Systems (ACIS), 2014-12-04)Two of the key themes in contemporary ISD literature are (i) how to build and release systems in shorter time frames and (ii) how to enable work group to build systems in a cohesive manner. This is reflected by today s ... -
Analysis of in vivo skin anisotropy using elastic wave measurements and Bayesian modelling
(Springer, 2023-04-06)In vivo skin exhibits viscoelastic, hyper-elastic and non-linear characteristics. It is under a constant state of non-equibiaxial tension in its natural configuration and is reinforced with oriented collagen fibers, which ... -
Voltage-controlled topological interface states for bending waves in soft dielectric phononic crystal plates
(Elsevier, 2022-11-19)The operating frequency range of passive topological phononic crystals is generally fixed and narrow, limiting their practical applications. To overcome this difficulty, here we design and investigate a one-dimensional ... -
Non-destructive mapping of stress and strain in soft thin films through sound waves
(Nature Research, 2022-09-17)Measuring the in-plane mechanical stress in a taut membrane is challenging, especially if its material parameters are unknown or altered by the stress. Yet being able to measure the stress is of fundamental interest to ... -
Stochastic modelling of pesticide transport to drinking water sources via runoff and resulting human health risk assessment
(Elsevier, 2024-02-09)A modelling framework was developed to facilitate a probabilistic assessment of health risks posed by pesticide exposure via drinking water due to runoff, with the inclusion of influential site conditions and in-stream ... -
Representing the stress and strain energy of elastic solids with initial stress and transverse texture anisotropy.
(The Royal Society, 2022-10-12)Real-world solids, such as rocks, soft tissues and engineering materials, are often under some form of stress. Most real materials are also, to some degree, anisotropic due to their microstructure, a characteristic often ... -
Modelling brain tissue elasticity with the Ogden model and an alternative family of constitutive models.
(The Royal Society, 2022-08-29)The Ogden model is often considered as a standard model in the literature for application to the deformation of brain tissue. Here, we show that, in some of those applications, the use of the Ogden model leads to the ... -
The Ogden model of rubber mechanics: 50 years of impact on nonlinear elasticity
(The Royal Society, 2022-08-29)We place the Ogden model of rubber elasticity, published in Proceedings of the Royal Society 50 years ago, in the wider context of the theory of nonlinear elasticity. We then follow with a short interview of Ray Ogden FRS ... -
Nonlinear vibration and stability of a dielectric elastomer balloon based on a strain-stiffening model
(Springer, 2022-05-23)Limiting chain extensibility is a characteristic that plays a vital role in the stretching of highly elastic materials. The Gent model has been widely used to capture this behaviour, as it performs very well in fitting ... -
Plane-polarised finite-amplitude shear waves in deformed incompressible materials
(SAGE Publications, 2022-04-07)We investigate how two finite-amplitude, transverse, plane body waves may be superposed to propagate in a deformed hyperelastic incompressible solid. We find that the equations of motion reduce to a well-determined system ... -
The generalised Mooney space for modelling the response of rubber-like materials
(Springer, 2022-03-23)Soft materials such as rubbers, silicones, gels and biological tissues have a nonlinear response to large deformations, a phenomenon which in principle can be captured by hyperelastic models. The suitability of a candidate ... -
A hyperbolic framework for shear sound beams in nonlinear solids
(Elsevier, 2021-09-14)In soft elastic solids, directional shear waves are in general governed by coupled nonlinear KZK-type equations for the two transverse velocity components, when both quadratic nonlinearity and cubic nonlinearity are taken ... -
Acousto-elasticity of transversely isotropic incompressible soft tissues: Characterization of skeletal striated muscle
(IOP Publishing, 2021-07-13)Using shear wave elastography, we measure the changes in the wave speed with the stress produced by a striated muscle during isometric voluntary contraction. To isolate the behaviour of an individual muscle from complementary ... -
Full torso and limited-domain computer models for epicardial pulsed electric field ablation
(Elsevier, 2022-05-18)Background and objectives Pulsed Electric Field (PEF) ablation has been proposed as a non-thermal energy to treat atrial fibrillation (AF) by ablation of ganglionated plexi using the epicardial approach. The electric field ...