Acta Polytechnica CTU Proceedings. 2017 ( vol. 7-13): Poslední příspěvky
Zobrazují se záznamy 101-115 z 115
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GEOMETRICAL OPTIMIZATION OF DENTAL IMPLANTS WITH REGARD TO OSSEOINTEGRATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)A newly developed reference dental implant specimen type was subjected to numerical simulations of osseointegration. The goal of these tests was to optimize the geometry of the implant so as to reduce local stress ... -
WATER ABSORPTION CAPACITY COEFFICIENT AND MASS MOISTURE OF RAMMED EARTH MATERIAL
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)This article presents the development of mass moisture of rammed earth material and determines the water absorption capacity coefficient for rammed earth with illite-kaoline clay. Specimens of two prescriptions were rammed ... -
LONG-TIME INVESTIGATION OF CEMENT COMPOSITE MATERIAL WITH MICRONIZED WASTE MARBLE POWDER: DYNAMIC MODULES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)This article focus on “blended cement”. The blended cement was created by using waste marble powder (WMP) as a partial replacement for cement. We investigated the influence of WMP on the developing of the dynamic modulus ... -
SOLID BURNT BRICKS’ TENSILE STRENGTH
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)This paper deals with experimental testing of solid burnt bricks and mortar in pure (axial) tension. The obtained working diagrams will be further use for a detailed numerical analysis of whole brick masonry column under ... -
WANG TILE SIZE IN TERMS OF CIRCULAR PARTICLE DYNAMICS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The main advantage of the Wang tiling concept for material engineering is ability to create large material domains with a relatively small set of tiles. Such idea allows both a reduction of computational demands and ... -
ADAPTIVE QUASICONTINUUM SIMULATION OF ELASTIC-BRITTLE DISORDERED LATTICES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The quasicontinuum (QC) method is a computational technique that can efficiently handle atomistic lattices by combining continuum and atomistic approaches. In this work, the QC method is combined with an adaptive algorithm, ... -
DEFORMATION BEHAVIOUR OF GELLAN GUM BASED ARTIFICIAL BONE STRUCTURES UNDER SIMULATED PHYSIOLOGICAL CONDITIONS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The paper deals with investigation of deformation behaviour of gellan gum (GG) based structures prepared for regenerative medicine purposes. Investigated material was synthesized as porous spongy-like scaffold reinforced ... -
PARAMETERS AFFECTING THE STRUCTURAL ANALYSIS OF A TUNNEL STRUCTURE EXPOSED TO FIRE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Behaviour of cut-and-cover tunnels exposed to fire should be analysed by using a realistic structural model that takes account of mechanical and thermal effects on the structure. This has been performed with the aid of ... -
RIGHTING OF CHINESE MITTEN CRABS (ERIOCHEIR SINENSIS) AND THEIR MODELS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The usage of unmanned underwater vehicles for marine tasks is continuously growing and bioinspired stabilizing systems shall help them to gain and keep a stable position during work. Therefore the righting maneuver of E. ... -
NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The current paper is describing the implementation of a multiscale numerical model for prediction of stiffness and strength in braided composites. The model is validated by experimental testing of single-layer braided tubes ... -
EXPERIMENTAL, NUMERICAL AND ANALYTICAL INVESTIGATIONS OF WIND-INDUCED NET PRESSURES FOR INDUSTRIAL BUILDINGS WITH ENVELOPE POROSITIES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The magnitude and the spatial distribution of wind-induced net pressures (external and internal) on buildings are frequently discussed among research communities and construction industries. This paper deals with this topic ... -
VALIDATION AND IMPLEMENTATION OF FAILURE PARAMETERS IN INTEGRATED SIMULATIONS FOR SHORT FIBRE REINFORCED POLYPROPYLENE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Nowadays short fibre reinforced polymers are often used in load carrying structural parts. Compared to continuous fibre reinforced polymers they exhibit a more complex morphology. Hence the determination of the strength ... -
EXPERIMENTAL IDENTIFICATION OF AN ELASTO-MECHANICAL MULTI-DEGREE-OF-FREEDOM-SYSTEM USING STOCHASTIC SIGNALS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The determination of dynamic parameters are the central points of the system identification of civil engineering structures under dynamic loading. This paper first gives a brief summary of the recent developments of the ... -
1D HERMITE ELEMENTS FOR C1-CONTINUOUS SOLUTIONS IN SECOND GRADIENT ELASTICITY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)We present a modified strain gradient theory of elasticity for linear isotropic materials in order to account for the so-called size effect. Additional material length scale parameters are introduced and the problem of ... -
UHPC SANDWICH STRUCTURES WITH COMPOSITE COATING UNDER COMPRESSIVE LOAD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Ultra-high-performance concrete (UHPC) sandwich structures with composite coating serve as multipurpose load-bearing elements. The UHPC’s extraordinary compressive strength is used in a multi-material construction element, ...