Archive
Multiscale study and modelling of composite macro-structures21.09.2022No.: VEGA 2/0061/20 The research project deals with the 2nd order two-scale computational homogenization procedure for modelling composite structures responses. Using the 2nd order homogenization approach, the multiscale analysis may describe more complex deformation modes…
Effect of nano-, micro-, and meso-nonhomogeneities in the macroscale thermomechanical performance of composite structure members21.09.2022No.: SK-UA-21-0010 Duration: 01. 01. 2022 – 31. 12. 2023 Teamleader: J. Sladek Team members SVK - team: M. Repka, O. Hrytsyna Team-members UA – team: Y. Tokovyy, A. Yasinskyy, L. Haiduk Annotation: This project…
Optimal design of micro/nano structures for metamaterials21.09.2022No.: APVV 18-0004 Duration: 01. 07. 2019 - 30. 06. 2023 Teamleader: J. Sladek Team members: V. Sladek, O. Hrytsyna, M. Repka, L. Sator, M. Vrabec Annotation: Advanced metamaterials for health monitoring of structures are…
Multiscale modelling of coupled fields in composite materials21.09.2022No. APVV-14-0216 Duration: 01. 07. 2015 - 30. 06. 2018 Teamleader: J. Sladek Team members: V. Sladek, M. Repka, L. Sator, M. Vrabec Multiscale modeling is applied for composite materials to predict material properties or…
Modelling and numerical simulations coupled field effects in micro/nano structural elements21.09.2022It is well known that the classical continuum theories are scale invariant and do not describe the size effects in specimen, that are experimentally observable in micro/nano elements. Atomistic models are unusable due to hardware…- Coupled problems of thermal and electromechanical fields in advanced materials with porous microstructure24.08.2022No. VEGA 2/0046/16 Duration: 01. 01. 2016 - 31. 12. 2019 Teamleader: V. Sladek Team members: J. Sladek, M. Repka, L. Sator, M. Vrabec Main goal of this project is to analyze coupling phenomena of…
- A multiscale flexoelectric theory and a new method for real-time detection of microcracks in dielectric materials24.08.2022No. APVV-14-0216 Duration: 01. 07. 2015 - 30. 06. 2018 Teamleader: J. Sladek Team members: V. Sladek, M. Repka, L. Sator, M. Vrabec Multiscale modeling is applied for composite materials to predict material properties or…
- Multiphysical problems in functionally graded materials plates24.08.2022No. APVV-14-0440 Duration: 01. 07. 2015 - 30. 06. 2019 Teamleader: V. Sladek Team members: J. Sladek, M. Repka, L. Sator, M. Vrabec The project deals with a unified theoretical and numerical treatment of the…
Material composition and properties of self-compacting heavyweight concrete17.06.2022Grant No. VEGA 2/0017/21 Duration: 1. 1. 2021 – 31. 12. 2023 Principal researcher: prof. Dr. Ing. Palou, Martin-Tchingnabé Annotation: The main focus of the project is the development of self-compacting heavyweight concretes based on…
Study of multicomponent cement material degradation under conditions simulating CO2 enriched geothermal environment17.06.2022Grant No. VEGA 2/0032/21 Duration: 1. 1. 2021 – 31. 12. 2024 Principal researcher: Ing. Eva Kuzielová, PhD. Annotation: Justness of detailed study of degradation due to CO2 enriched geothermal environment is conditioned by development…
Flexoelectric effect in piezoelectric structures under transient loads14.06.2022In miniature structures of several micro / nano meters, the so-called size effect was observed, i.e. the dependence of the results on the size of the material structure. This effect cannot be described by classical…
Numerical modelling of advanced materials within classical and non-classical thermoelasticity14.06.2022Thermal stresses, especially their discontinuity at the interface between two different materials, often represent a significant damage factor for laminated composite structures. Therefore, there is a need for reliable prediction of thermal stresses in composite…
New gradient theory for thermoelectric structures14.06.2022Nowadays, great effort is taken on the efficient use and extraction of clean energy from renewable sources to replace the energy from fossil fuels. Thermoelectric materials have the potential to be used to convert waste…
The energy efficiency of an innovative BIPV/T-TE-PCM module with PCM passive cooling13.06.2022No.: VEGA 2/0095/20 Duration: 1.1.2020 – 31.12.2023 Teamleader: L. Kómar Team members: P. Matiašovský, P. Mihálka, J. Petržala, M. Kocifaj, M. Čekon, J. Čurpek Annotation: The objective of the presented proposal is to evaluate the…
Diffuse light in urban environment: A new model, which embraces the optical properties of a local urban atmosphere13.06.2022No.: VEGA Duration: 1.1.2020 – 31.12.2023 Teamleader: M. Kocifaj Team members: A. Kocifajová, L. Kómar, J. Petržala, S. Wallner Annotation: Due to elevated contamination by aerosols the diffuse light field in an urban environment differs…
Global Characterization of Skyglow13.06.2022No.: APVV-18-0014 Duration: 1.7.2019 – 30.6.2023 Teamleader: M. Kocifaj, Team members: L. Kómar, J. Petržala, S. Wallner, H. A. Lamphar Annotation: In spite of the enormous progress in light pollution (LP) research since Garstang, subsequent…
Luminance patterns on standard sky types13.06.2022Due to changing cloud cover, the outdoor sky luminous transmittance and atmospheric turbidity in natural conditions are causing also the redistribution of sky luminance patterns, as well as changes to the exterior sky illuminance levels.…
Novel thermal management design for BIPV modules incorporating MEPCM layers13.06.2022Building-integrated photovoltaic (BIPV) refers to an architectural design approach that combines photovoltaic (PV) panels with the building construction system. This combination allows BIPV to not only feature a power generation function but also to become…
Modeling of the diffuse light of a night sky13.06.2022Multiple scattering computationThe mechanism in which multiple scattering influences the radiance of a night sky has been poorly quantified until recently, or even completely unknown from the theoretical point of view. The relative contribution of…
Characterization of light-pollution sources13.06.2022City emission functionAnthropogenic skyglow is currently a serious threat to natural environments near human settlements; however, a spread of light over wide areas is difficult to predict due to uncertainties in the city emission function…
Development of fiber-reinforced heavy-weight self-compacting mortars with special protection properties against ballistic missiles26.05.2022Self-compacting mortars possess a high potential for accomplishing significant gains in engineering performance and economy owing to the elimination of vibration. The key factor in their development is to ensure sufficient flowability and segregation resistance.…
Design and optimization of heavy-weight concrete compositions for the fields with different degrees of ionizing radiation26.05.2022The aim of corresponding reaserch activities is to develop heavy-weight concrete with shielding properties against ionizing radiation, which could be used in nuclear plants, for medical units, particle accelerator facilities or storage bunkers of nuclear…
Investigation of the degradation impact of high temperature and pressure26.05.2022Formation and stability of nanocrystalline and crystalline phases occurring in cementitious systems at higher temperatures and pressures significantly influence the properties of materials, and thus the durability and the lifetime of geothermal wells. Transformations of…
Study of carbonation and combined chemical corrosion of cement composites caused by the effect of geothermal water26.05.2022In applications, where cementitious materials are exposed to elevated CO2 concentrations, such as wells for oil and gas operations, it is needed to design carbonation-resistant cements. Carbonation/carbonic corrosion takes place simultaneously with hydration reactions of…
Air pollution mitigation can reduce the brightness of the night sky in and near cities22.07.2021We wanted to briefly draw attention to a paper published last week in Nature Scientific Reports: https://www.nature.com/articles/s41598-021-94241-1. We build on existing work connecting air quality with skyglow formation through a combination of radiative transfer theory…
Retrieval of angular emission function from whole-city light sources13.03.2018Artificial light emitted from cities at night is known to spread over considerable distances and result in over illumination of nocturnal environments. Predicting the collective optical effects that all city lights can have on the…
Gradient piezoelectricity12.07.2016Department of Mechanics Fig. 2: The ¼ model for the central crack Fig. 6 Size-effect of the strain-gradients on the crack-opening-displacement for a cracked piezoelectric square domain The strain-gradient size-factor, q, The constitutive equations…
Daylight Science and Daylighting Technology01.07.2016Department of Buildings Physics Kittler Richard, Kocifaj Miroslav, Darula Stanislav 2012, XXII, 341 p. 116 illus., 38 in color. ISBN 978-1-4419-8815-7 Sprinter New York, Dordrecht, Heidelberg, London Hardcover, Information…
Continuum Mechanics and Computational Mechanics01.07.2016Department of Mechanics In the department of mechanics, there is a group of research workers which are interested in the analysis of mechanical, thermal and other loads applied to continua, first of all to solids.…
Behaviour of steel structures containing cracks01.07.2016Department of Structures The project is aimed to the extension of present knowledge of non-linear response of thin-walled steel structures which contain growing cracks. The process of deformation and degradation of the structures is studied…- Dynamics of Deformable Continua27.06.2016Structural Dynamics - Earthquake and Wind Engineering The expert group dealing with the structural dynamics focuses primary to the analysis of different dynamic actions properties and their effects on civil engineering structures, using both experimental…
