Prohlížení Acta Polytechnica CTU Proceedings. 2016, vol. 3 dle názvu
Zobrazují se záznamy 1-19 z 19
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ANALYSIS OF WELDED POLYPROPYLENE STRUCTURES: COMBINATION OF EXPERIMENTS AND SIMULATIONS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The effect of joining by extrusion welding on the tensional stiffness and strength of a Polypropylene copolymer was analysed. Short-term and creep tests with laboratory specimens were conducted. Welded joint sub-components ... -
CHARACTERIZATION OF ULTRASONIC ASSISTED ADHESIVE JOINTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Joining experiments using different adhesives were carried out. In addition to the adhesive, the specimens were also treated with ultrasonic waves to improve the load carrying capacity of the joined parts. Lap joint shear ... -
COMPARISON OF OPTICAL METHODS FOR CHARACTERIZATION OF GLASS MOSAIC WEATHERING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The work presented in this paper is a part of research project supported by Ministry of Culture and devoted to conservation of precious mosaic of "Last Judgement" on St. Vitus Cathedral in Prague. The aim of the project ... -
DATABASE FINLIV – FOCUS ON STAIRCASE METHOD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This paper introduces FinLiv database focused on gathering, manipulating and providing experimental static and fatigue data. One of its new features is the ability to include also fatigue tests realized by the staircase method. -
DEFORMATION CHARACTERISTICS OF CHOPPED FIBRE COMPOSITES SUBJECTED TO QUASI-STATIC TENSILE LOADING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This work presents deformation behaviour of cost effective chopped fiber composites. Use of chopped fibre is advantageous for manufacturing however complex shape parts production technology could be challenging. Batches ... -
DETERMINATION OF THERMAL RESPONSE OF CARRARA AND SNEZNIKOVSKY MARBLE USED AS A BUILDING MATERIALS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Physical weathering of marble, widely used as a cladding material on buildings, is one of the most common damaging mechanism caused by anisotropic thermal expansion of calcite grains. The extent of marble deterioration ... -
EXPERIMENTAL VALIDATION OF CUMULATIVE SURFACE LOCATION ERROR FOR TURNING PROCESSES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The aim of this study is to create a mechanical model which is suitable to investigate the surface quality in turning processes, based on the Cumulative Surface Location Error (CSLE), which describes the series of the ... -
FLEXIBILITY TEST OF THE TOOLS OF ANGIOPLASTY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Coronary angioplasty is a procedure used to treat the narrowed coronary arteries. Physicians operate with many different tools during the intervention, the main devices are the following: guidewires, guiding catheters, ... -
IDENTIFICATION OF DAMAGED ZONES IN C/PPS SPECIMENS SUBJECTED TO FATIGUE LOADING BASED ON HIGH-RESOLUTION THERMOGRAPHY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)In this study high resolution thermography is used for identification of damaged zones in Carbon fiber/polyphenylene sulfide (C/PPS) long fiber composite specimens with induced impact damage subjected to tensile fatigue ... -
LOAD BEARING CAPACITY OF THE GLASS RAILING ELEMENT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)In this paper some basic physical and mechanical properties of glass as structural material are presented. This research is about specifically manufactured glass railing element that will be a part of a pedestrian bridge ... -
NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The work introduces a two-phase method for determination of axial loads in tie-rods. The method described here consists of an experimental activity and an automated numerical calculation. The influence of considering an ... -
PRELIMINARY ASSESSMENT OF THE CHANGE IN THE MECHANICAL BEHAVIOR OF SYNTHETIC YARNS SUBMITTED TO CONSECUTIVE STIFFNESS TESTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Anchoring systems of offshore platforms are designed to work uninterruptedly for 20 to 30 years, and despite the increasing number of studies concerning these systems’ mechanical behavior in working conditions, most of ... -
SEMI-ACTIVE DAMPING PERFORMANCE OF IRON PARTICLE FILLED SILICONE RUBBER
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The aim of this work was to design, produce and evaluate a demonstrator to visualize the magneto-induced damping behaviour of materials. In contrast to standard materials, the damping coefficient of iron particle filled ... -
STATISTICAL EVALUATION OF FATIGUE DATA OF COMPONENTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)A variety of steels, cast iron grades and other metals have long been used for the production of machine components. In recent years, however, new materials such as sintered materials and plastics become increasingly ... -
STRUCTURAL AND MECHANICAL CHARACTERIZATION OF DEFORMED POLYMER USING CONFOCAL RAMAN MICROSCOPY AND DSC
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Polymers have various interesting properties, which depend largely on their inner structure. One way to influence the macroscopic behaviour is the deformation of the polymer chains, which effects the change in microstructure. ... -
SURFACE TREATMENT AND EXAMINATION OF GRADE 2 AND GRADE 5 TITANIUM
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Surface characteristics play an important role in the implant-bone integration that is required for the long-term reliability of dental and orthopedic implants. In this paper, we investigate the effect of acid etching on ... -
THE EFFECT OF SUPPORT PLATE ON DRILLING-INDUCED DELAMINATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Delamination is considered as a major problem in drilling of composite materials, which degrades the mechanical properties of these materials. The thrust force exerted by the drill is considered as the major cause of ... -
THERMO-VISCOELASTIC CHARACTERIZATION OF POLYMER LAMINATE FILMS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The investigated material - laminate is intended as a substrate for small electronic components, electrodes and printed circuits, which are processed onto the laminate prior to thermoforming. The placement of the electronic ... -
VALIDATION OF CUTTING FORCE CHARACTERISTIC FOR COMPLEX TOOLPATH
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)In the design phase of the milling process, there is a great need for the prediction of the cutting force, the required torque and power of the spindle. These informations could be used to optimize the tool path and improve ...