In this research a confocal laser scanning microscopy (CLSM) was performed in the characterization of geomaterials, such as natural stone and concrete. An innovative technique of sample preparation and upgraded image analysis (IA) software was proposed. It was confirmed this technique offers several advantages comparing to the conventional light optical microscopy, including the ability to control depth of field, elimination or reduction of background information away from the focal plane, and three dimensional imaging from thick specimens.
COBISS.SI-ID: 1469799
Polystyrene nanocomosites with titanate nanotubes and nanoribbons were prepared by extrussion process. A slight increase in mechanical tensile properties was observed in the case of the nanocomposite containing 1 wt. % of titanate nanoribbons probably reflecting a weak interaction between the polymer matrix and the nanofiller. Nevertheless, our results prove that the use of functionalized titanate nanoribbons may in combination with extrusion process represent a very promising possibility for the development of new nanocomposites also at the industrial level.
COBISS.SI-ID: 22051623
Intergranular stress-corrosion cracking (IGSCC) of stainless steel was monitored simultaneously with electrochemical noise (EN), acoustic emission (AE), and elongation. A specimen was monitored also optically. Correlations between the measured signals were analysed and compared to the different stages of IGSCC. It was found that EN is associated with crack propagation from the early stages, whereas AE is associated with the final stages of fracture. Digital image correlation (DIC) is sensitive to crack development, and is used to measure crack length and crack openings.
COBISS.SI-ID: 22051623
In the book the earthquakes and seismic behaviour of masonry buildings are discussed. The mechanical properties of masonry and masonry materials are presented and the basic principles and equations for the numerical calculations and verification of the limit states, as well as seismic resistance of different masonry structures are explained. Experimental basis for the development of equations and structural models is provided. An important part of the book discusses the seismic assessment and retrofit of existing masonry structures, including cultural heritage buildings.
COBISS.SI-ID: 248745472
Extensive field and laboratory tests of the Slano blato landslide were made, and the mechanism of triggering was determined. It was found that the landslide behaves as an earth flow and triggered when the amount of monthly rainfall exceeds the critical level. Rheological laboratory tests and the rheological numerical analysis, which are not typical for geomechanical problems were performed. The proposed methodology, which enables the time prediction of the landslide deformation behaviour, is generally valid for the caracterization of earth flows.
COBISS.SI-ID: 1488231