25 research outputs found
high-performance immobilized-metal affinity chromatography of proteins on iminodiacetic acid silica-based bonded phase
High-performance immobilized-metal affinity chromatography of proteins on iminodiacetic acid silica-based bonded phases
Nonradioactive monitoring of organic and inorganic solute transport into single Xenopus oocytes by capillary zone electrophoresis
DNA Sequencing by Capillary Electrophoresis Using Short Oligonucleotide Primer Libraries
Relations entre la résolution, l'enthalpie libre séparation et le pouvoir de séparation en chromatographie en phase gazeuse
Analysis of essential work of rupture using non-local damage-plasticity modelling
We consider the non-local damage plasticity modelling of the essential work of rupture (EWR), i.e. the specific energy required to cause failure within a specimen, resulting in its separation into two parts. The more usual concept of essential work of fracture (EWF) is a measure of the specific energy, per unit cross sectional area, consumed during the propagation of cracks across a series of double edge-notched tensile (DENT) specimens. Recently, a novel framework has been proposed allowing the determination of a related quantity, the essential work of necking and tearing from a single tensile test on an unnotched dogbone specimen of ductile metal. Simultaneous multiple gauge length extensometry forms a crucial component of the experimental approach, and allows capture of such phenomena as strain localisation, post-critical deformation behaviour, damge non-locality, elastic snap-back, and size effects. In this study the rupture test is simulated using a non-local damage-plasticity model using finite elements. The results are interpreted in terms of essential and non-essential work of rupture