139 Works

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

Victor Iliev RIZOV

Model order reduction for a flow past a wall-mounted cylinder

W. STANKIEWICZ, K. KOTECKI, M. MORZYŃSKI, R. ROSZAK & W. SZELIGA

Analysis of micropolar porous thermoelastic circular plate by eigenvalue approach

R. KUMAR, A. MIGLANI & R. RANI

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...

Numerical Solution of MHD Casson Fluid Flow Due to a Moving Extensible Surface with Second-Order Velocity Slip and Carbon Nanotubes

Reddisekhar Reddy SEETHI REDDY & Bala Anki Reddy POLU

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

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

Some considerations of fundamental solution in micropolar thermoelastic materials with double porosity

R. KUMAR, R. VOHRA & M.G. GORLA

Virtual Additive Manufacturing Based on Semicrystalline Polymer Polyetheretherketone (PEEK)

Paweł BAJERSKI, Ryszard B. PECHERSKI & Damian CHUDY
Virtual additive manufacturing (AM) is one of the new directions of research that is necessary to improve AM technology. Abaqus/SIMULIA software allows to simulate the whole process using user subroutines to expand solver capabilities. Two of the most important subroutines are UepActivationVol and UMATHT. The UepActivationVol is related to an activation of elements in accordance with the defined path of the process. The second one the UMATHT is used to implement and combine thermal and...

LES study of turbulence intensity impact on spark ignition in a two-phase flow

J. STEMPKA, L. KUBAN & A. TYLISZCZAK

Crystallization Kinetics of Polyamide 2200 in the Modelling of Additive Manufacturing Processes by FE Analyses

Paweł BAJERSKI, Ryszard B. PĘCHERSKI, Damian CHUDY & Leszek JARECKI
The thermoplastic polymers present amorphous or semi-crystalline structures which are very important factors in describing volumetric shrinkage. The thermoplastic materials are commonly used for production of daily life products, industrial or as the prototypes. Different techniques of manufacturing polymer structures are considered like: injection molding, extrusion, milling, additive manufacturing (AM). AM is a very fast developing field in the manufacturing and research. Unfortunately, components or prototypes made using the thermoplastic semi-crystalline materials in 3D techniques...

Prediction of Surface Roughness of End Milling for Cycloidal Gears Based on Orthogonal Tests

Shan-Ming LUO, Long-Xing LIAO & Jing-Yu MO

Experimental and Analytical Investigation of Point Fixed Corrugated Metal Sheets Subjected to Blast Loading

Kai FISCHER, Alexander STOLZ & Christoph ROLLER

Multi-Scale Numerical Analysis of the Effect of Microstructural Features on the Mechanical Behavior of Polycrystalline Ti-6Al-4V Alloy

Fatna BENMESSAOUD, Vincent VELAY, Mohammed CHEIKH, Vanessa VIDAL, Christine BOHER & Farhad RÉZAÏ-ARIA
The present work aims to model the influence of microstructural features of Ti-6Al-4V titanium alloy on its mechanical behavior. A multi-scale approach based on crystal plasticity is considered. The elasto-viscoplastic constitutive equations of Meric-Cailletaud are modified to take into consideration the effect of the grain size by introducing the Hall-Petch relationship at the local scale. This modified model is coupled with finite element calculations under small strain assumption to simulate the monotonic mechanical behavior of...

A minimal gradient-enhancement of the classical continuum theory of crystal plasticity. Part I: The hardening law

H. PETRYK & S. STUPKIEWICZ

Cattaneo-Vernotte bio-heat transfer equation. Identificaton of external heat flux and relaxation time in domain of heated skin tissue

Bohdan MOCHNACKI & Marek PARUCH

Euler–Bernoulli type beam theory for elastic bodies with nonlinear response in the small strain range

A. JANEČKA, V. PRŮŠA & K.R. RAJAGOPAL

Generalized theory of thermoelastic diffusion with double porosity

T. KANSAL

Evaluation of Measured Strain Responses to in Situ Vehicular Loading for Typical Asphalt Pavements

Chuan XIAO

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...

Simulation of dynamic phenomena in a high pressure variable displacement axial piston hydraulic pump

Tomasz ZAWISTOWSKI & Michał KLEIBER

Asymptotic solutions for generalized thermoelasticity with variable thermal material properties

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

Effect of material composition on bending analysis of FG plates via a two-variable refined hyperbolic theory

M. BOUAZZA, A.M. ZENKOUR & N. BENSEDDIQ

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Affiliations

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