Acta Polytechnica CTU Proceedings. 2018 ( vol. 14-20)
Kolekce v této komunitě
Poslední příspěvky
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BTT & RFLB - THE OPTIMUM SET FOR STEAM TURBINE BLADES MONITORING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)BTT, Blade Tip Timing system, is a commercially available system generating files of precise times of blade tips when passing sensors attached in a machine stator. RFLB, Residual Fatigue Life of Blades, is a postprocessor ... -
ANALYSIS OF REMEDIAL ACTIONS DESIGNED TO STABILIZE A HIGHWAY CUT IN A LANDSLIDE AREA
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The Carpathian flysch is widely recognized as a geological environment prone to slope movements. This fragility in such an environment is due to its complicated geological and hydrogeological conditions. Weakened slip ... -
IMAGE SYNTHESIS OF METAL FOAM MICRO-STRUCTURE WITH THE USE OF WANG TILES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)In this paper we present our recent work focused on the analysis of the abilities of Wang Tiles method and Automatic tile design method to synthesize the micro-structure of cellular materials, especially particular type ... -
GEOMETRY AND MECHANICAL PROPERTIES OF A 3D-PRINTED TITANIUM MICROSTRUCTURE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Construction applications sometimes require use of a material other than construction steel or concrete – mainly in cases, where strength to weight ratio needs to be considered. A suitable solution to this problem are ... -
ASSESSMENT OF ADHESION BETWEEN MINERAL AGGREGATE AND BITUMINOUS BINDER USING DIGITAL IMAGE ANALYSIS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)This work presents how to assess a rate of adhesion between bituminous binder and mineral aggregate. Asphalt mixtures composed from grade bitumen 50/70, reference or modified with adhesion promoters based on amines, and ... -
CHARACTERIZATION OF CEMENT-BASED COMPOSITE EXPOSED TO HIGH TEMPERATURES VIA ULTRASONIC PULSE METHOD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)In this paper, the attention is paid to the investigation of the influence of high temperature acting on specimens made from specially designed cement-based composite. The experimental programme was carried out on six sets ... -
STRENGTH OF COMPOSITE YARN UNDER BIAXIAL LOADING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The present paper is concerned with two types of periodic unit cell of composite yarn with different geometry but the same material properties. Their macroscopic response under tensile and compressive loading in the ... -
VALIDATION OF LINKED SIMULATION FOR FIRE-EXPOSED CONCRETE STRUCTURES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)This article presents linked computational approach for fire simulation and its effects on structure using adiabatic surface temperature. The simulation solves a weakly-linked problem, consisting of computational fluid ... -
CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Non-linear finite element simulation of four-point bending test of a small-size arch is described in this paper. The arch of 780mm span is made of Yellow Poplar (Liriodendron tulipifera) laminated veneer lumber (LVL) and ... -
RELATION BETWEEN STATIONARY AND MOVING PEDESTRIAN LOAD MODELS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The dynamic analysis of footbridges became common in recent years, but the approach to modelling pedestrian induced load is still inconsistent. This paper compares two different ways of modelling single pedestrian load. ... -
WHICH FANS ARE THE BIGGEST ACCELERATION OF THE GRANDSTAND?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The fans of AC Sparta Prague and SK Slavie Prague have been arguing about the fact whose fans support their team better since the end of 20th century. There have been made many experiments on the intensity of vibrations ... -
INVESTIGATION OF SURFACE MACROSCOPIC RESIDUAL STRESSES OF CUTTING CERAMICS AFTER MECHANICAL MACHINING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Currently, the extensive research in the field of cutting ceramics is conducted and there are efforts to replace cemented carbides by these materials. However, the problem is to improve the production of ideal compact ... -
DEFORMATION OF FE3SI SINGLE-CRYSTALS UNDER NANOINDENTATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Knowledge of the complex deformation behavior in the anisotropic materials is one of essential issues in materials science and it is crucial for the applications of a given material. In this study, mechanical response of ... -
THE INTERACTION OF FLOODS WITH TRANSPORT INFRASTRUCTURE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Current demands on transport infrastructure are very often associated with the terms of “sustainability, availability and affordability”. The first term directly refers to the basic principles of sustainable construction ... -
THE LOAD-DISPLACEMENT BEHAVIOUR OF GROUND ANCHORS IN FINE GRAINED SOILS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Ground anchors represent an important structural element in the area of geotechnical engineering. Despite their extensive usage, a design process of these elements is usually performed using simple empirical and semi-empirical ... -
CALIBRATION OF INPUT PARAMETER VALUES FOR AN ADVANCED MATERIAL MODEL OF SPRAYED CONCRETE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The paper briefly presents an advanced material model for shotcrete involving many aspects of the actual behavior of concrete. However, the contribution is focused on determination and calibration of selected input parameter ... -
PREDICTION OF THE DEVELOPMENT OF GROUNDWATER QUALITY IN A FINISHED SLUDGE LAGOON
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)This study deals with prediction of the development of groundwater quality in a finished sludge lagoon. For depositing and predicting secondary float energy by-products, it is appropriate to use mathematical modelling. The ... -
PROPOSAL FOR SECURING A ROCK MASSIF NEAR BEROUN RAILWAY STATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The proposal concerns the securing of a 100 m long section of the rock slope along the lead track at Beroun railway station, where a relatively massive rock block collapsed in June 2016. The rock slope is about 30 m high ... -
SOIL REINFORCEMENT AND EC7 (202x)
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Soil reinforcement is not really covered in current version of Eurocode 7 and therefore during the proposals for 2nd generation of EC7 the soil reinforcement was highly promoted for inclusion in new EC7 based on the comments ... -
ANALYSIS OF THE TIME COURSE OF A BRIDGE ABUTMENTS SETTLEMENT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The paper deals with the time course of the bridge abutments settlement (consolidation of the subsoil) on the motorway D4 in Stupava, Slovakia. The bridge abutments are founded on an earth embankment 5.5 meters in height ...
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