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The tensile ductility of cellular solids: the role of imperfections
(Elsevier, 2016-10-11)
Metallic and polymeric foams typically possess a low tensile failure strain of a few percent despite the fact that the parent solid can have high ductility (10% or more). This is remarkable as foams are bending-dominated ...
Evaluating the effect of increasing ceramic content on the mechanical properties, material microstructure and degradation of selective laser sintered PCL/b-TCP materials
(Elsevier, 2015-06-06)
Orthopaedic scaffold materials were fabricated from polycaprolactone (PCL) and composite PCL β-tricalcium phosphate (PCL/β-TCP) powders using selective laser sintering (SLS). Incorporating β-TCP particles is ...
Experimental and numerical characterisation of the cyclic thermo-mechanical behaviour of a high temperature forming tool alloy
(American Society of Mechanical Engineers, 2010-10-05)
This paper describes high temperature cyclic and creep relaxation testing and modeling of a high nickel-chromium material (XN40F) for application to the life prediction of superplastic forming (SPF) tools. An experimental ...
Project management for engineers
(National University of Ireland, Galway, 2016)
In recent years we have witnessed a rapid growth in the use of project management
methods and tools as a means by which organisations achieve their objectives. Projects
drive business in industries as diverse as ...
Cooperative contractility: the role of stress fibres in the regulation of cell-cell junctions
(Elsevier, 2014-11-27)
We present simulations of cell-cell adhesion as reported in a recent study [Liu et al., 2010, PNAS, 107(22), 9944-9] for two cells seeded on an array of micro-posts. The micro-post array allows for the measurement of forces ...
Statistical grain size effects in fretting crack initiation
(Elsevier, 2016-09-20)
A crystal plasticity computational framework is developed and validated to investigate the microstructure sensitivity of crack initiation in fretting. Randomly distributed microstructure geometries are incorporated into a ...
On the role of the actin cytoskeleton and nucleus in the biomechanical response of spread cells
(Elsevier, 2014-02-11)
Micropipette aspiration (MA) has been used extensively in biomechanical investigations of un-adhered cells suspended in media. In the current study, a custom MA system is developed to aspirate substrate adhered spread ...
Computational investigation of in situ chondrocyte deformation and actin cytoskeleton remodelling under physiological loading
(Elsevier, 2012-12-24)
Previous experimental studies have determined local strain fields for both healthy and degenerate cartilage tissue during mechanical loading. However, the biomechanical response of chondrocytes in situ, in particular the ...
The effect of remodelling and contractility of the actin cytoskeleton on the shear resistance of single cells: a computational and experimental investigation
(The Royal Society Publishing, 2012-07-18)
The biomechanisms that govern the response of chondrocytes to mechanical stimuli are poorly understood. In this study, a series of in vitro tests are performed, in which single chondrocytes are subjected to shear deformation ...
Modelling the degradation and elastic properties of poly(lactic-co-glycolic acid) films and regular open -cell tissue engineering scaffolds
(Elsevier, 2015-09-02)
Scaffolding plays a critical rule in tissue engineering and an appropriate degradation rate and sufficient mechanical integrity are required during degradation and healing of tissue. This paper presents a computational ...