College of Engineering and Informatics, National University of Ireland Galway, Ireland
Adv. Mater. Lett., 2019, 10 (7), pp 455-459
DOI: 10.5185/amlett.2019.9812
Publication Date (Web): Mar 01, 2019
Copyright © IAAM-VBRI Press
E-mail: fiona.weafer@gmail.com
For many years, computational modelling and simulation studies have been used by developers to advance device design and have been reported in regulatory medical device submissions. However, cardiovascular stent materials in such computational models are typically assumed to behave as a continuum. This approach assumes that bulk material properties apply to the micro-sized structure, i.e. material behavior is scale independent. However, as size is reduced, mechanical size effects arise as the grain size to specimen width ratio drops below a critical value. These size effects cause material behavior to deviate significantly from bulk material behavior. If such a deviation in material behavior is to be captured within computational models, it is necessary to represent the crystalline structure of a metal and to capture the anisotropic behavior of individual grains within these models. This paper describes the development of such a modelling methodology to investigate the phenomenon of strain localization within grains of a 316L stainless steel specimen under fatigue loading conditions.
Finite element, size effect, microstructure, 316L stainless steel, strain localization.
Adaptations and Lessons from COVID-19: A Perspective on How some Industries will be Impacted
Background and Strategies for Identification and Design of Materials for Thermochemical Energy Storage and Conversion
Phosphorus Gasification during the Reduction of basic Oxygen Furnace Slags in a Novel Reactor Concept
Concrete Electrical Resistivity at Varied Water, Chloride Contents and Porosity – Experiment, Modelling & Application
Water Purifying Bio-concrete
Local Fluctuations of Transformation to “Amorphous Diamond” from C60 Fullerenes and Neutron-irradiated Graphite under Shock-compression
Coulomb Drag of Electron-Electron Interactions in GaAs Bilayer with a Non Homogeneous Dielectric Background
Effect of Nd-concentration in Nd(2-x)FexO3 System on the Crystal Structure and Microwave Absorption Characteristics
Experimental Study on Strength Characteristics of Chopped Glass Fiber (CGF) Cement-Mortar Composites
Researcher of the Year 2020: Professor Herbert Gleiter, Germany
Self-sealing Polymeric Materials: Mechanism and Applications
Development of Ruthenium Complex Based Sensitizers, Organic Based Sensitizers, and Co-sensitization System for Dye-sensitized Solar Cells
Characterization of a New Copper Paste for Printed Electronics
Co-Ni Nanowires Arrays with Tunable Properties Obtained by Template Synthesis
Dispersion of Multi-Walled Carbon Nanotubes Using Polyvinylpyrrolidone for Application in Cement - Based Composites to Enhance Electrical Conductivity
Towards a Physics Based Model of Magnetic Barkhausen Noise in Steel
Sustainable Concept and Economic Evaluation of a Solar-Powered Hydrogen Generation Unit
Macrocell Corrosion and its Countermeasure for Reinforced Concrete after Patch Repair
Modelling the Height of Hydrothermally Synthesized Titanium Dioxide Nanostructures
Cellular SiC/Iron Alloy Composite
Conceptual Design of the CSP Lead Demonstrator SOLEAD
Numerical and Experimental Analyses of Equal Channel Angular Processing of Pure Aluminum
Copyright ©2010-2020 VBRI Press
Full Article