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Journal of Theoretical and Applied Mechanics
2010 Vol. 48 nr 4 917-932
PL Celem pracy była doświadczalna analiza wybranych właściwości mechanicznych oraz zobrazowanie na poziomie makro i mikroskopowym, strukturalnej odpowiedzi na wymuszoną deformację w obszarze pojedynczej blaszki pierścienia, jak i zespołu kolejnych, połączonych ze sobą blaszek pierścienia włóknistego. B[...]
EN The main goal of this paper is experimental analysis of selected mechanical properties of single annulus fibrosus lamellae at macroscopic and microscopic levels as well as representation and explanation of the structural response to forced deformation. The conducted analysis of single annulus fibros[...]
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Acta of Bioengineering and Biomechanics
EN The aim of the study was to determine experimentally the stress as strain function as well as the orthotropy and heterogeneity of porcine dura mater of the cervical spinal cord. Material was divided into groups based on the place of collection, considering the dorsal side and ventral side, specifyin[...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
EN Crystallographic texture is the only factor essentially influencing plastic anisotropy in annealed pure metals and single phase alloys. Therefore, the extreme states of anisotropy can be defined using the quantitatively evaluated texture. The macroisotropy condition in polycrystalline metals constit[...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
EN Plastic anisotropy of materials can be calculated from the tensile test data following two ways: (1) by the analysis of the strain ratio [gamma] vs elongation [epsilon] relationship, or (2) by relating partial strains (epsilon w and epsilon t) due to width and thickness strains to the total elongati[...]
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Archives of Metallurgy and Materials
EN The paper describes the results of structure and properties tests of flat bars made of alloy WE43 obtained in the process of extrusion with the use of KOBO method. An analysis of structure changes was conducted both in initial state and after plastic deformation. A quantitative analysis of the mater[...]
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Fatigue of Aircraft Structures
2015 Iss. 7 69--79
EN To prevent failure of machine components it is necessary to measure material damage generated in a component throughout its entire lifetime. Damage can be quantified by means of damage parameters. This paper considers the usefulness of hardness measurements to evaluate damage parameter in Inconel 71[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: Impurity atoms in the grain boundary can be responsible for embrittlement or they can strengthen a material. In this work, we have modeled the effect of B impurity on ∑ 5 (012) symmetrical tilt grain boundary in Ni by using first principle quantum-mechanical calculations. The grains can eit[...]
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Fatigue of Aircraft Structures
2017 Iss. 9 27--37
EN Static tension test allows characterization of material strength properties. This simple test provides input data for numerical calculation of structural components made of the tested alloy. Elastic, plastic and failure behavior of the structural component in question is simulated, using, for exampl[...]
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Journal of KONES
2018 Vol. 25, No. 3 219--225
EN Composites are materials used for various types of constructions in the automotive industry, aviation, and shipbuilding. Due to the wide use of these materials, there is a problem with their recycling. Such material requires appropriate processing technology, which has been developed to obtain a rec[...]
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Journal of KONES
2018 Vol. 25, No. 4 223--229
EN Glass fibre reinforced composites are used in many branches of industry. Polyester-glass laminates serve as structural material in shipbuilding (e.g. hulls of units, superstructures), in railways, automotive (e.g. elements of car bodies and interior fittings, roofs of wagons, cisterns) or aviation ([...]
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TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
EN This paper describes the material parameter determination procedure for the elasto-viscoplastic Bodner-Partom model. A set of viscoplastic parameters is determined for rubber-toughened propylene-ethylene copolymer, and is used to numerical simulations of the material behavior under different strain [...]
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Advances in Materials Science
EN Because of the poor tribological properties titanium alloys are often surface treated in order to improve their load bearing capacity and wear resistance. Various surface engineering techniques are applied to produce hard single or multilayered coatings, composed of various intermetallic phases, e.g[...]
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Advances in Materials Science
EN There are many biomaterials that can substitute pathologically altered tissue, however, none of them is as perfect as a native tissue. Currently, scientists are looking for new biomaterials that can be successfully implanted without exposing the patient to reoperation. Each material introduced into [...]
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Archives of Metallurgy and Materials
EN The work is focused on evaluation of resistance of the welded joint made of supermartensitic 13Cr6Ni2.5Mo stainless steel to sulfide stress cracking. Testing method A and solution B in accordance with NACE TM 0177 were used. All the testing samples were ruptured in a very short time interval but wel[...]
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Fatigue of Aircraft Structures
2016 Iss. 8 92--96
EN In the previous work [1] it was shown that strain hardening had considerable impact on the hardness of Inconel 718. In order to verify the weakening of the material associated with the damage mechanism in the tested material, the hardness tests were performed on the stretched specimen which was subs[...]
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Archives of Metallurgy and Materials
EN This paper focused on the effect of pure torsion deformation and various torsion pitches on the mechanical properties of the commercial pure Al wires which has not been examined so far. The initial wires with diameter of 4 mm have been torsion deformed to different pitch length (PL). In order to inv[...]
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Archives of Metallurgy and Materials
EN The continuing high level of demand for lightweight structural materials is the reason for the ever-growing interest in aluminum alloys. The main areas of application for aluminum alloys products are the aerospace and automotive industries. Production of profiles and structural elements from lightwe[...]
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Central European Journal of Energetic Materials
EN Various chemical reactions and physical processes (such as stabilizer consumption, migration and evaporation of nitroglycerine, decomposition of nitroglycerine and nitrocellulose, etc.) take place in double based rocket propellants grains over the time, even under ambient storage conditions. The ove[...]
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Acta Mechanica et Automatica
EN Various materials are used in car body production which are not always possible to join by conventional joining methods such as resistance spot welding. Therefore ClinchRivet method seem to be possible alternative. The paper deals with evaluation of properties of the joints made by mechanical joinin[...]
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Acta Mechanica et Automatica
EN The paper deals with the optimization of parameters of resistance spot welding and quality analysis of welded joints made by combination of galvanized Advanced High Strength Steel and High Strength Low Alloy steel. It is an advanced material combination uti-lized in automotive industry to reduce wei[...]
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