Research activities

Application of surface morphology analysis in Material Science:

• creation of fretting-fatigue maps concept for damage qualification under complex loading condition Read more...
• analysis of roughness influence on running conditions and material response fretting maps,
• influence of machining process (milling, polishing) on friction and wear under fretting condition,
• analysis of lubrication (ZDDTP) in rough (milling) and smooth (polishing) interface in contact subjected to micro-sliding,
• analysis of contact pressure in rough interface for dry and lubricated contact,
• influence of roughness on friction and sliding in tribological interface,
• development of fast fretting methodology for coating and surface treatments,
• contact displacement measurement under fretting-fatigue loadings,
• dissipated energy quantification under fretting fatigue loadings,
• application of potential drop technique for crack propagation analysis under fretting fatigue loadings,
• influence of surface morphology on wear damage in tribological contact interface,
• development of theoretical model for contact angle prediction on rough surfaces, combining Wenzel and Cassie-Baxter approaches,
• influence of surface roughness on wettability,

Application of surface morphology analysis in Computational Fluid Dynamics:

• modelisation of surface roughness boundary conditions, in CFD analysis,
• influence of roughness on contact angle hysteresis,
• development of contact angle hysteresis model and its application in solid fluid interaction analysis,
• analysis of surface roughness influence on droplet impact and spreading,
• influence of roughness on droplet coalescence dynamic,

Application of statistical method in Material Science:

• polar plots representation for coating evaluation in tribology,
• application of Design of Experiment (DOE) methodology for tribological test optimisation,
• surface response method for contact loading analysis (pressure, friction, roughness, lubrication),
• application of Pareto Chart analysis for test condition factors evaluation,
• analysis of variance (ANOVA) for tibological response quantification,
• application of covariance analysis for surface roughness influence on friction and wear.

Application of mesoscopic modelling method in Material Science:

• creation of contact angle hysteresis model for fluid-solid interaction Read more...
• development of parallel solver for Lattice Boltzmann method,
• roughness influence on lubrication and wettability in tribological contact,

Application of Lattice Boltzmann Method:

• internal flow analysis during droplet coalescence in inkjet printing,
• numerical PIV (Particle Image Velocimetry) of spreading droplet after impact on solid surface and coalescence with sessile droplet,
• analysis of neck creation during sessile droplets coalescence,
• bubble entrapment analysis in early stage of droplet coalescence,
• dynamic of neck expansion during droplet coalescence,
• surface energy influence (wettability) on droplet coalescence dynamic,
• prediction of final footprint of droplets in inkjet printing,
• prediction of final footprint after droplet coalescence,

Application of numerical method in Material Science:

• modellisation of Wholer curve under fretting fatigue loadings,
• calculation of Stress Intensity Factor for crack nucleation prediction,
• calculation of multiaxial fatigue criterion (Crossland, DangVan, Papadopoulos) under complex contact loadings,
• calculation of crack arrest condition under fretting and fretting fatigue loadings using Finite Elements Method (FEM),
• calculation of Stress Intensity Factor (SIF) by Weight Function using FEM.