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Journal of KONES
EN A number of theoretical problems are discovered in the application of degenerated models in punching process of ballistic shields. Insufficient knowledge of dynamic behaviours of these models based on non-linear complex constitutive materials or combination of mixed rheological Maxwell models with l[...]
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Archives of Metallurgy and Materials
2016 Vol. 61, iss. 3 1371--1378
EN The aim of work is the investigation of the internal stresses in PVD coated metal matrix composites (MMC). Sintered MMC substrate is composed of the matrix with the chemical composition corresponding to the high-speed steel, reinforced with the TiC type hard carbide phase. Functionally graded compos[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: In this paper the influence of the shape of transition functions between the single layers of multilayer coating on the final internal stresses states in the coating was investigated. Additionally the degree of nonlinearity and asymmetry of postulated gradient layers was calculated. Design[...]
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Archives of Transport
PL W pracy przedstawiono metodę, która może zostać zastosowana do wyznaczenia rozkładu naprężeń resztkowych w ciałach poddanych obciążeniom cyklicznie zmiennym. Mieszana globalno/lokalna wersja Bezsiatkowej Metody Różnic Skończonych (BMRS) została zastosowana do zbudowania dyskretnego sformułowania obl[...]
EN This paper presents a method, which may be used to determine residuaI stress distribution in bodies subject to cyclic loads. A mixed global/local version of the Meshless Finite Difference Method (MFDM) is used to devise a discrete computational formulation of a shakedown based residual stress calcul[...]
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Archives of Materials Science and Engineering
EN Purpose: The main issue of this paper is to present results of finite element analysis of beams elements on unilateral elastic foundation received with a use of special finite elements of zero thickness designated for foundation modelling. Design/methodology/approach: Computer strength analysis with[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: This article is presenting the Material Science Virtual Laboratory. Developed laboratory is an open scientific, investigative, simulating and didactic medium helpful in the realisation of the scientific and didactic tasks in the field of material Science. It is implemented in the Institute [...]
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Archives of Materials Science and Engineering
EN Purpose: The work presents the application of the Finite Elements Method in a computer simulation whose aim is to determine the properties of PVD and CVD coatings on various substrates and to optimise parameters of a laser surface treatment process of surface layers of tool steels. Design/methodolog[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: This paper describes intelligent system to predict steel machinability. Design/methodology/approach: The prediction of machinability of steel, depending on input parameters (percentage of calcium, percentage of oxygen, percentage of sulphur), was performed by means of genetic programming a[...]
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