Wyniki wyszukiwania dla: FIELD AND NUMERICAL TESTS

• Numerical analysis of the influence of a Gyrotron's cavity walls curvature

  Publikacja

  • B. Szlachetko
  • T. Wieckowski
  • E. Plinski

  - Rok 2018

  Pełny tekst do pobrania w serwisie zewnętrznym

• Numerical assessment of the fatigue crack propagation in ship structuraldetails.

  Publikacja

  • J. Kozak

  - Rok 2002

  Przedstawiono podejście teoretyczne pozwalające na modelowanie rozwoju pęknięcia w konstrukcji kadłuba okrętu. Omówiono założenia i procedurę realizacyjną. Pokazano wyniki badań rzeczywistych modeli konstrukcji kadłuba-skrzyżowanie wiązań ramowych o jednakowej wysokości. Dokonano porównania i krytycznej analizy wyników uzyskanych na drodze teoretycznej z wynikami badań rzeczywistych.

• Numerical conditioning of delta-domain Lyapunov and Riccati equations

  Publikacja

  • P. Suchomski

  - IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS - Rok 2002

  W pracy rozważono problem uwarunkowania dyskretno czasowych równań Lapunowa oraz równań Riccatiego - to znaczy problem wrażliwości rozwiązań takich równań na odchyłki ich parametrów od nominalnych wartości. Zdefiniowano odpowiedni "różniczkowy" wskaźnik uwarunkowania oraz podano efektywną metodę szacowania jego wartości. Udowodniono teoretycznie - a także przekonująco zilustrowano na drodze numerycznej - twierdzenie głoszące, iż...

• Numerical solution of boundary value problems with deviated arguments

  Publikacja

  • T. Jankowski

  - Rok 2003

  Zastosowano metodę różnicową, aby wyznaczyć przybliżone rozwiązanie problemubrzegowego z odchylonymi argumentami. Pokazano, że metoda różnicowa, przyodpowiednich warunkach, jest zbieżna do rozwiązania i podano oszacowaniabłędów.

• Analytical and numerical solution of a coupled KdV-MKdV system.

  Publikacja

  • A. Halim
  • S. Leble

  - Rok 2004

  Transformacje Darboux zostały użyte do rozwiązania układu równań KdV-MKdV.

• Confined granular flow in silos : experiments and numerical investigation

  Publikacja

  • J. Tejchman

  - Rok 2013

  W monografii opisano niektóre charakterystyczne zjawiska mające miejsce podczas przepływów silosowych materiałów sypkich. Wykonano badania doświadczalne oraz obliczenia numeryczne celem wyjaśnienia zjawisk. Doświadczenia wykonano w dużych i małych silosach. Obliczenia wykonano przy zastosowaniu metody elementów skończonych opartej na hipoplastycznym modelu konstytutywnym dla materiałów sypkich.

• Steel-fibrous concrete -experiments and a numerical discrete model

  Publikacja

  • J. Tejchman
  • J. Kozicki

  - Rok 2009

  W książce przedstawiono wyniki doświadczalne i numeryczne dotyczące rys w elementach betonowych wzmocnionych włóknami stalowymi dla różnych problemów brzegowych quasi-statycznych. Obliczenia wykonano przy zastosowaniu własnego oryginalnego modelu sieciowego. W modelu beton z włóknami stalowymi był modelowany na poziomie mezo. W obliczeniach uwzględniono strefy kontaktu miedzy kruszywem a zaczynem oraz włóknami a zaczynem.

• Experiments and numerical analyses for composite RC-EPS slabs

  Publikacja

  • Ł. Skarżyński
  • I. Marzec
  • J. Tejchman

  - Computers and Concrete - Rok 2017

  W artykule przedstawiono wyniki doświadczalne i numeryczne dla kompozytowych płyt złożonych z żelbetu i styropianu. Wykonano doświadczenia dla płyt w skali 1:1 podczas zginania. Wyniki doświadczalne zostały modelowane stosując 2 różne modele: sprężysto-plastyczny i połączony sprężysto-plastyczny z degradacja sztywności. Oba model zostały wyposażone w długość charakterystyczna mikrostruktury. Osiągnięto dobra zgodność miedzy...

• Gdańsk University of Technology graduates’ assessment of individual elements of education in the completed field of study – years 2015-2016

  Dane Badawcze

  open access

  • M. Tomczak
  • M. Downar

  The dataset includes data from the survey on the Gdańsk University of Technology graduates' from the years 2015-2016 on their assessment of individual elements of education in the completed field of study. The survey was conducted in the period from 2017 to 2018, two years after the respondents obtained graduate status. The research sample included...

• Gdańsk University of Technology graduates’ assessment of individual elements of education in the completed field of study – years 2017-2018

  Dane Badawcze

  open access

  • M. Tomczak
  • M. Downar

  The dataset includes data from the survey on the Gdańsk University of Technology graduates' from the years 2017-2018 on their assessment of individual elements of education in the completed field of study. The survey was conducted in the period from 2019 to 2020, two years after the respondents obtained graduate status. The research sample included...

• Assessment of the ice jam potential on regulated rivers and reservoirs with the use of numerical model results

  Publikacja

  • T. Kolerski

  - COLD REGIONS SCIENCE AND TECHNOLOGY - Rok 2021

  This study presents an attempt at estimating the jam potential on rivers with significant anthropogenic intervention in the course or flow characteristics of the river. The DynaRiCE model was used for forecasting both the place and time of an ice jam occurrence. In this modified method, two ice parameters are subjected to analysis, namely the relative ice-to-water velocity (vi/vw),and the ice thickness to single floe thickness...

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• Biomass Production and Removal of Nitrogen and Phosphorus from Processed Municipal Wastewater by Salix schwerinii: A Field Trial

  Publikacja

  • M. Mohsin
  • E. Kaipiainen
  • M. M. A. Salam
  • N. Evstishenkov
  • N. Nawrot
  • A. Villa
  • E. Wojciechowska
  • S. Kuittinen
  • A. Pappinen

  - Water - Rok 2021

  In many Baltic regions, short-rotation willow (Salix spp.) is used as a vegetation filter for wastewater treatment and recycling of valuable nutrients to upsurge bioeconomy development. In this context, a four-year field trial (2016–2019) was carried out near a wastewater treatment plant in eastern Finland (Outokumpu) to investigate the effect of the processed wastewater (WW) on biomass production as well as the nutrients uptake...

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• Evaluation the P-Delta Effect on Collapse Capacity of Adjacent Structures Subjected to Far-field Ground Motions

  Publikacja

  • F. Kazemi
  • B. Mohebi
  • M. Yakhchalian

  - Civil Engineering Journal-Tehran - Rok 2018

  In urban areas, adjacent structures can be seen in any insufficient distance from each other, because of economic reasons ‎and refusal of acquired minimum separation distance according to seismic previsions. Collapse capacity assessment of ‎structures is one of the important objectives of performance-based seismic engineering. The purpose of this study is to ‎consider the pounding phenomenon and P-Delta effect in seismic collapse...

  Pełny tekst do pobrania w portalu

• Size effect in concrete beams under bending – influence of the boundary layer and the numerical description of cracks

  Publikacja

  • I. Marzec
  • J. Bobiński

  - MATEC Web of Conferences - Rok 2019

  In the paper the size effect phenomenon in concrete is analysed. The results of numerical simulations of using FEM on geometrically similar un-notched and notched concrete beams under bending are presented. Concrete beams of four different sizes and five different notch heights under three-point bending test were simulated. In total 18 beams were analysed. Two approaches were used to describe cracks in concrete. First, eXtended...

  Pełny tekst do pobrania w portalu

• Numerical Analysis of Mice Carotid Arteries’ Response Emphasizing the Importance of Material Law Constants’ Validation

  Publikacja

  • B. Sobczyk
  • J. Chróścielewski
  • K. Wilde

  - Applied Sciences-Basel - Rok 2024

  In this paper, a detailed validation of the passive material properties of mice carotid arteries and constants of the Fung and Holzapfel hyperelastic material laws is conducted by means of static nonlinear FEM analyses. The response of the carotid arteries in an inflation test is studied here for the following mouse models: wild-type, mdx, sgcd−/−, Eln+/+, Eln+/−, Fbln5+/+, and Fbln5−/−. All FEM computations are conducted on models...

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• Database of the convergence analysis results of the nonstandard approximation of the generalized Burgers–Huxley equation for the solution bounded within [0,1].

  Dane Badawcze

  open access

  • A. Szafrańska
  • J. Macias-Diaz
  • G. Graff

  The presented dataset is a result of the convergence analysis of the Mickens-type, nonlinear, finite-difference discretization of a generalized Burgers–Huxley partial differential equation.

• Database of the convergence analysis results of the nonstandard approximation of the generalized Burgers–Huxley equation for the solution bounded within [0, γ^(1/p)].

  Dane Badawcze

  open access

  • A. Szafrańska
  • J. Macias-Diaz
  • G. Graff

  Presented dataset is a result of the convergence analysis of the Mickens-type, nonlinear, finite-difference discretization of a generalized Burgers–Huxley partial differential equation. The generalized Burgers–Huxley equation is a diffusive partial differential equation with nonlinear advection and diffusion. The boundary problem for this equation possesses...

• Uniform expansion estimates in the quadratic map as a function of the partition size, using Johnson’s algorithm

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map with the smallest critical neighborhood for which the expansion exponent λ0 is positive

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the partition size, computing λ only

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the partition size, using the “derivative” partition type

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the cubic map as a function of the parameter

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Continuation classes for a non-linear Leslie population model with 3 varying parameters

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: A database of global dynamics for a nonlinear Leslie population model

  This dataset contains selected results of rigorous numerical computations conducted in the framework of the research described in the paper "A database schema for the analysis of global dynamics of multiparameter systems" by Z. Arai, W. Kalies, H. Kokubu, K. Mischaikow, H. Oka, P. Pilarczyk, published in SIAM Journal on Applied Dynamical Systems (SIADS),...

• Uniform expansion estimates in the quadratic map with the smallest critical neighborhood for which the expansion exponent λ is positive

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the critical neighborhood size

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the partition size, using the “critical” partition type

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the parameter, using the “uniform” partition type

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the partition size, using the Floyd–Warshall algorithm

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the parameter, using the “critical” partition type

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the parameter, using the “derivative” partition type

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Continuation classes for a non-linear Leslie population model with 2 varying parameters

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: A database of global dynamics for a nonlinear Leslie population model

  This dataset contains selected results of rigorous numerical computations conducted in the framework of the research described in the paper "A database schema for the analysis of global dynamics of multiparameter systems" by Z. Arai, W. Kalies, H. Kokubu, K. Mischaikow, H. Oka, P. Pilarczyk, published in SIAM Journal on Applied Dynamical Systems (SIADS),...

• Uniform expansion estimates in the quadratic map with the smallest critical neighborhood for which the expansion exponent λ0 is greater than 0.1

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the unimodal map with γ=1.5 as a function of the parameter

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map as a function of the parameter, with a small critical neighborhood

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the unimodal map with γ=2.5 as a function of the parameter

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• Uniform expansion estimates in the quadratic map with the smallest critical neighborhood for which the expansion exponent λ is greater than 0.1

  Dane Badawcze

  open access

  • P. Pilarczyk

  - seria: Uniform expansion estimates in one-dimensional dynamics

  This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.

• A finite element analysis of thermal energy inclination based on ternary hybrid nanoparticles influenced by induced magnetic field

  Publikacja

  • M. B. Hafeez
  • M. Krawczuk
  • S. N. Kottakkaran
  • W. Jamshed
  • A. A. Pasha

  - INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER - Rok 2022

  The use of hybrid nanoparticles to improve thermal processes is a key method that has implications for a variety of interventions utilized in many sectors. This paper aimed to look into the impacts of ternary nanoparticles on hyperbolic tangent materials to establish their thermal characteristics. Flow describing equations have been explored in the presence of heat production, non-Fourier heat flux, and an induced magnetic field....

  Pełny tekst do pobrania w portalu

• Interaction Between Storm Water Conduit Flow and Overland Flow for Numerical Modelling of Urban Area Inundation

  Publikacja

  • J. Hakiel
  • M. Szydłowski

  - Rok 2016

  Nowadays we can observe increasing frequency of inundations in cities. This makes accurate predicting of inundations more important than ever. Numerical modeling of this issue requires complex approach with simultaneous calculations of pipe flow and surface flow. In this paper, after a short review of known methods used for solving pipe and surface flow, we will try to answer the question if presented methods would be sufficiently...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Experimental and numerical evaluation of mechanical behaviour of composite structural insulated wall panels under edgewise compression

  Publikacja

  • Ł. Smakosz
  • I. Kreja

  - Rok 2016

  A composite structural insulated sandwich panel (CSIP) is a quite novel approach to the idea of sandwich structures. A series of natural-scale experimental test is required each time a change in panel’s geometry is planned and a reliable computational tool is required to precede actual laboratory testing with virtual simulations. An attempt of creating such a tool has been made with use of a commercial FEM code ABAQUS, in order...

• AVHRR Level1CD covering Baltic Sea area year 2001

  Dane Badawcze

  open access

  • A. Krężel
  • K. Bradtke
  • J. Zdroik

  - seria: AVHRR Level1CD covering Baltic Sea area 2001-2012

  The dataset contains data derived from recordings of the AVHRR/3 radiometer operating on board the NOAA POES (Polar Orbiting Environmental Satellites) Series - 5th Generation Satellites covering the Baltic Sea area. The satellite data was recorded in the years 2000-2012 directly by the HRPT station installed at the University of Gdańsk. The registration...

• Numerical metadata of a microchamber with bacteria

  Dane Badawcze

  open access

  • P. Ziółkowski
  • A. Koulali
  • P. Radomski
  • D. Mikielewicz

  Selected results in the form of graphs and a diagram of the analysed system. The metadata shows in sequence:  1) Temperature distribution inside fluidic chamber (=0.8, h=100) after 190s of irradiationTemperature distribution inside fluidic chamber (=0.8, h=100) after 190s of irradiation; 2) Maximum temperature profile in the fluidic chamber during the...

• Evaluation of pounding effects between reinforced concrete frames subjected to far-field earthquakes in terms of damage index

  Publikacja

  • S. H. Hosseini
  • H. Naderpour
  • R. Vahdani
  • R. Jankowski

  - Bulletin of Earthquake Engineering - Rok 2022

  In this paper, three different damage indexes were used to detect nonlinear damages in two adjacent Reinforced Concrete (RC) structures considering pounding effects. 2-, 4- and 8-story benchmark RC Moment Resisting Frames (MRFs) were selected for this purpose with 60%, 75%, and 100% of minimum separation distance and also without any in-between separation gap. These structures were analyzed using the incremental dynamic analysis...

  Pełny tekst do pobrania w portalu

• International Conference on Tests and Proofs

  Konferencje

• Textile reinforced concrete members subjected to tension, bending, and in-plane loads: Experimental study and numerical analyses

  Publikacja

  • A. Ścięgaj
  • S. Almfeldt
  • F. Larsson
  • K. Lundgren

  - CONSTRUCTION AND BUILDING MATERIALS - Rok 2023

  Textile reinforced concrete has raised increasing research interest during the last years, mainly due to its potential to be used for freeform shell structures involving complex load situations. Yet, most experimental work has focused on test setups with primarily uniaxial loading. In the current work, such setups are complemented with a novel test setup of deep beams, including in-plane bending and shear. Further, nonlinear finite...

  Pełny tekst do pobrania w portalu

• Effect of grain crushing on shear localization in granular bodies during plane strain compression. Int. J. Numerical and Analytical Methods in Geomechanics

  Publikacja

  • J. Tejchman
  • J. Górski
  • I. Einav

  - INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS - Rok 2011

  Artykuł omawia wpływ miażdżenia ziaren na lokalizacje odkształceń stycznych w materiałach granulowanych podczas ściskania dwuosiowego. Obliczenia MES wykonano przy zastosowaniu mikropolarnego prawa hipoplastycznego uwzględniającego zmianę średniej średnicy ziarna pod wpływem ciśnienia i ścinania. Obliczenia pokazały wpływ miażdżenia ziaren na szerokość lokalizacji.

  Pełny tekst do pobrania w serwisie zewnętrznym

• "Raport z wstępnych badań własności stali trudnościeralnej 460HB",. ang "Report on preliminary tests of the properties of wear-resistant steel 460HB"

  Publikacja

  • W. Kiełczyński
  • M. Głowacka
  • L. Nadolny
  • I. Jóźwowski

  - Rok 2022

  Mikrostrukturę badanej stali trudnościeralnej 460HB stanowi drobnoziarnisty martenzyt odpuszczony, który jest właściwy dla stali konstrukcyjnych niskowęglowych, niskostopowych ulepszonych cieplnie. W przypadku blach grubych, do których zalicza się badana stal, struktura może ulec zaburzeniu, jeżeli w hutniczym procesie wytwórczym wystąpiła niejednorodność odkształcenia plastycznego i w konsekwencji tworzenie się pasm segregacyjnych,...

• Numerical modelling of different airbag folding patterns and their influence on occupant responses in frontal vehicle impact

  Publikacja

  • Ł. Pachocki
  • H. Fang

  - INTERNATIONAL JOURNAL OF CRASHWORTHINESS - Rok 2024

  This paper presented a procedure for airbag folding for the application in occupant safety studies and analysed the influence of different airbag folding patterns on the occupant severity in frontal impact. Airbags were folded in two patterns: zig-zag and top-roll, using two folding techniques: Initial Metric Method and Explicit Folding. The explicit folding was found to be more expensive in terms of preparation time. However,...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Isothermal turbines − New challenges. Numerical and experimental investigations into isothermal expansion in turbine power plants

  Publikacja

  • K. Kosowski
  • M. Piwowarski
  • M. Richert
  • R. Stępień
  • W. Włodarski

  - ENERGY CONVERSION AND MANAGEMENT - Rok 2024

  The efficiency of power plants with steam or gas turbines depends on the efficiencies of a thermodynamic cycle and devices implementing this cycle. In the case of high power outputs, we cannot expect a significant increase in the efficiency of individual devices. Therefore, what remains is to increase the efficiency of the implemented thermodynamic cycle - the complex Rankine cycle in the case of steam turbines or the extended...

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• Numerical and experimental study on effect of boundary conditions during testing of stiffened plates subjected to compressive loads

  Publikacja

  • K. Wołoszyk
  • Y. Garbatov
  • J. Kowalski
  • L. Samson

  - ENGINEERING STRUCTURES - Rok 2021

  This study analyses the effect of boundary conditions during testing on the structural behaviour stiffened plates with different thicknesses subjected to compressive loads. The goal of the compressive tests is to analyse the ultimate strength of a stiffened plate. During the test, relevant physical quantities are measured and investigated. The supporting structure's behaviour is investigated by analysing the force-displacements...

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• Factors affecting low-temperature cracking of asphalt pavements: analysis of field observations using the ordered logistic model

  Publikacja

  • D. Ryś
  • M. Jaczewski
  • M. Pszczoła
  • A. Kamedulska
  • B. Kamedulski

  - International Journal of Pavement Engineering - Rok 2023

  Accurate identification of factors that primarily affect the number of low-temperature cracks is crucial for selection of road materials and planning of pavement maintenance. Field investigations of lowtemperature cracks were performed in the years 2014 and 2020 on the same 68 road sections being in service in typical traffic conditions. The collected data were statistically analysed using the ordered logistic regression model....

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