113 Works

Turbulence statistics and distribution of turbulent eddies for jet flow and rigid surface interaction

S. ROY, K. DEBNATH & B.S. MAZUMDER

Droplet bouncing on the surface with micro-structure

T. BOBINSKI, G. SOBIERAJ, M. PSARSKI, G. CELICHOWSKI & J. ROKICKI

Generalized theory of thermoelastic diffusion with double porosity

T. KANSAL

On Navier slip and Reynolds transpiration numbers

Paweł ZIÓŁKOWSKI & Janusz BADUR

Asymptotic solutions for generalized thermoelasticity with variable thermal material properties

Y. WANG, D. LIU, Q. WANG & J. ZHOU

Prediction of secondary flow losses in an entrance duct to a low-pressure turbine

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Effects of Three-Axial Material Inhomogeneity on Lengthwise Cracks in Non-Linear Elastic Beams

Victor Iliev RIZOV

Response Surfaces in the Numerical Homogenization of Non-Linear Porous Materials

Witold BELUCH & Marcin HATŁAS
The paper deals with the numerical homogenization of structures made of non-linear porous material. Material non-linearity causes a significant increase in computational costs for numerical homogenization procedure. An application of the response surface methodology allows a significant reduction of the computational effort providing good approximation precision. Finite element method commercial software is employed to solve the boundary-value problem in both scales. Due to the significant reduction in computing time, the proposed attitude may be applied...

Postprocessing and reliability evaluation of one-dimensional numerical simulation results in mechanical problems

Jan WOJTAS

Estimation of the ischemic brain temperature with the particle filter method

Felipe S. NUNES, Helcio R.B. ORLANDE & Andrzej J. NOWAK

Numerical Modelling of Post-Ground Subsystem in Road Safety Barrier Crash Tests

Marian KLASZTORNY, Daniel Bronislaw NYCZ, Pawel DZIEWULSKI, Roman GIELETA, Michal STANKIEWICZ & Karol ZIELONKA
A new analytical algorithm for determining the elastoplastic parameters for soft, medium and hard plastic cohesive soils, corresponding to *MAT_005_SOIL_AND_FOAM material model available LS-Dyna FE code, was formulated. The numerical modelling of the post-soil subsystem, applicable in the modelling of road safety barrier crash tests using this material model of the roadside dehydrated ground, was developed. The methodology was presented on the example of a Sigma-100 steel post partly driven into the soil and subjected...

Experimental and Theoretical Study on Screwed Connections in Cold-Formed Steel Structure

Rattanasak HONGTHONG, Apai BENCHAPHONG, Sutera BENCHANUKROM & Nirut KONKONG
This research aims to study the fastening rotation behavior of cold-formed steel screw connections by experimental testing and analytical modelling. Both the experimental test and finite element results showed the failure modes of tilting and bearing failure. The rotation failure mode of the screw connection was studied by an analytical method using a spring model with screw-plate stiffness which included the bending and shear stiffness of the screw and the bearing stiffness of the screw...

Influences of a visco-elastically supported boundary on reflected waves in a couple-stress elastic half-space

C.D. WANG, P.J. WEI, P. ZHANG & Y.Q. LI

Theoretical and Numerical Analyses of an Aluminium-Concrete Composite Beam with Channel Shear Connectors

Łukasz POLUS & Maciej SZUMIGAŁA
This paper presents a numerical simulation and a theoretical investigation of an aluminiumconcrete composite (ACC) beam subjected to bending. ACC structures are similar to steel-concrete composite (SCC) structures. However, their girders are made of aluminium instead of steel. The use of ACC structures is limited because of the lack of relevant design rules. Due to this fact the authors suggest applying the theory for SCC structures to ACC structures. In this paper, the methods for...

Mixed-mode thermal fracture of AISI 304 stainless steel with temperature-dependent material properties

M. RAJABI & N. SOLTANI

A comparison of deep convolutional neural networks for image-based detection of concrete surface cracks

Marek SŁOŃSKI

Vibrations of a Double-Beam System with Intermediate Elastic Restraints Due to a Moving Force

Filip ZAKĘŚ & Paweł ŚNIADY
In this paper, we investigate the problem of the dynamic behaviour of a double-beam system with intermediate elastic restraints subjected to a moving point force. Problem is solved by replacing this type of structure with two single-span beams loaded with a given moving force and redundant forces representing reactions in the intermediate restraints. Redundant forces are obtained by solving Volterra integral equations of the second order which are compatibility equations corresponding to each redundant. Solutions...

Potential method in the theory of thermoelasticity for materials with triple voids

M. SVANADZE

The Effect of Strength Differential on Material Effort and Lifetime of Steam Turbine Rotors Under Thermo-Mechanical Load

Mariusz BANASZKIEWICZ, Waldemar DUDDA & Janusz BADUR
The paper presents the results of experimental tests and numerical simulations related with the strength differential effect. Tensile and compression tests on 2CrMoV low-alloy steel are performed to evaluate the magnitude of the yield stress difference in tension and compression. The strength differential parameter is then used in the formula for equivalent stress proposed by Burzynski. The material effort calculated using Burzynski and Huber-Mises-Hencky hypotheses was compared for different start-stop cycles. Analytical notch stress-strain correction...

Research on Influence of TiSi(N) Reflective Coating Thermal Resistance on Energy Absorption of Fireproof Textile Coupled with Auxetic Fabric

Danuta MIEDZIŃSKA, Michał STANKIEWICZ, Roman GIELETA & Konstanty MARSZAŁEK
The research presented in the paper deals with the improvement of firemen protective clothing. The proposed modification of the special textile PROTON is based on the application of TiSi(N) nanocomposite reflective layer, which improves the thermal resistance of the coated material. The second improvement deals with the implementation of auxetic textile into the protective clothing structure. Such material is characterized with the very good blast wave resistance. In the paper both phenomena were studied. The...

Registration Year

  • 2019
    113

Resource Types

  • Data Paper
    113

Affiliations

  • Poznań University of Technology
    4
  • Tabor (Poland)
    3
  • Phetchabun Rajabhat University
    2
  • AGH University of Science and Technology
    2
  • Cracow University of Technology
    1
  • Dorodnitsyn Computing Centre
    1
  • China University of Mining and Technology
    1
  • Lublin University of Technology
    1
  • Przemysłowy Instytut Motoryzacji
    1
  • Jan Grodek State Vocational Academy in Sanok
    1