Keywords: thermophysical properties, virial equation, statistical mechanicsPublished in DKUM: 05.06.2012; Views: 2121; Downloads: 53 Link to full text
Abstract: The re-characterisation of complex defects with re-entrant sectors has been addressed for cracks extending by fatigue, ductile tearing and cleavage. In Part I crack extension by fatigue and ductile tearing was discussed. In Part II cleavage data are presented for a family of complex defects with re-entrantsectors. Experimental tests on complex and re-characterised profilesare analysed using deterministic and probabilistic approaches. The work addresses the conservatism of re-characterisation procedures when appliedto cleavage failure on the lower shelf and in the ductile-brittle transition.Keywords: fracture mechanics, structural elements, complex defects, recharacterisation, line-spring analysis, cleavage failure, constraint, statistical fracture mechanics, numerical analysisPublished in DKUM: 01.06.2012; Views: 1461; Downloads: 100 Link to full text
Abstract: A mathematical model for the calculation of thermal conductivity of nanofluids containing nanoparticles and nanotubes on the basis of statistical mechanics is presented. This appears to be the first such attempt published in the scientific literature. We focus on the influence of the liquid layer structure around nanoparticles as the reason for enhancement of the thermal conductivity of nanofluids. Analytical results of both the current analysis and statistical mechanics are compared with experimental data reported in the scientific literature, which show good agreement.Keywords: statistical thermodynamics, mathematical models, thermal conductivity, nanofluids, transport properties, statistical nano-mechanicsPublished in DKUM: 31.05.2012; Views: 2173; Downloads: 107 Link to full text
Keywords: therodynamics, statistical nano-mechanics, fluid flow, nanofluids, thermal conductivity, pure fluids, mathematical modelPublished in DKUM: 30.05.2012; Views: 3579; Downloads: 64 Link to full text
