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Wyświetlanie 1-3 z 3
Tytuł:
Bending Moment and Cross-Section Deformation of a Box Profile
Autorzy:
Kut, Stanisław
Stachowicz, Feliks
Powiązania:
https://bibliotekanauki.pl/articles/102893.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
stretch-bending
box profile
aluminium alloy
deformation
FEM
zginanie
profil skrzynkowy
stop aluminium
odkształcenie
MES
Opis:
In the process of plastic bending of thin-walled profiles, there is a significant deformation of the cross-section, which has a very significant impact on the course and effects of the shaping process construction products. In this paper, the experimental, analytical as well as numerical analyses of the box profile bending process enabled to establish the relationships determining the dependence of the cross-sectional form and bending moment on the bending curvature. The following paper discusses pure bending moment and the cross-sectional deformation of 21.5×21.5×1.8 mm and 25×25×2.5 mm square tubes made of the 6060 aluminium alloy. Satisfactory agreement of the experimental results and numerical calculations was obtained for the values of horizontal and vertical wall deflection, as well as for the experimental, calculated and numerical bending moment characteristics.
Źródło:
Advances in Science and Technology. Research Journal; 2020, 14, 2; 85-93
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unconventional Materials from Sewage Sludge with a Potential Application in a Road Construction
Autorzy:
Wójcik, Marta
Bąk, Łukasz
Stachowicz, Feliks
Powiązania:
https://bibliotekanauki.pl/articles/102745.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
sewage sludge
glass waste
recycling
civil engineering
road construction
osad ściekowy
odpady szklane
recykling
inżynieria lądowa
budowa dróg
Opis:
Limited possibilities of agricultural utilization of sewage sludge results in the development of unconventional methods of its final management. Recently, recycling of sewage sludge in road construction is under examination. Literature review mentions that properly prepared sludge might replace other conventional materials which are commonly used in a construction sector. In this paper, the proposition of the use of sewage sludge in the production of unconventional material for a road construction is presented. In laboratory tests, dewatered sewage sludge with the moisture content at the level of 62%, glass powder and quartz sand were applied. For the obtained product, physical and chemical characteristics were examined. The compressive strength and the hardness were also measured. The results were compared with other materials which are also used in construction sector. The research confirmed the possibility to produce a material from different fractions of waste, which might indicate usefulness in civil engineering.
Źródło:
Advances in Science and Technology. Research Journal; 2018, 12, 4; 65-75
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Natural Aging of the AlCu4Mg1 Aluminum Sheet Alloy on the Constitutive Parameters of Selected Models of Flow Stress
Autorzy:
Kut, Stanisław
Pasowicz, Grzegorz
Stachowicz, Feliks
Powiązania:
https://bibliotekanauki.pl/articles/2204701.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
AW-2024
natural aging
uniaxial tensile tests
flow stress
flow stress model
constitutive parameters
Opis:
This paper presents the results of experimental studies aimed at determining constitutive parameters for selected constitutive equations of flow stress as a function of the natural aging time of 2 mm thick AlCu4Mg1 (AW-2024) sheet. The knowledge of these constitutive parameters as a function of aging time is necessary to analyze and model the processes of forming sheet metal stampings after heat treatment during natural aging. The constitutive parameters in individual constitutive equations were determined on the basis of the approximation of the course of strain hardening curves. The courses of these curves for the tested natural aging times in the range of 0-120 minutes after heat treatment were made on the basis of uniaxial stretching tests of samples taken in the directions of 0, 45 and 90 degrees to the direction of sheet rolling. The values of constitutive parameters as a function of natural aging time were determined for four popular models of flow stress: Hollomon, Swift, Voce and El-Magd. Moreover, the relationship between the natural aging time and the value of the yield strength in the tested aging time range was determined, and the accuracy of the investigated constitutive equations for describing the course of the flow stress of the tested sheet material was assessed on the basis of the analysis of approximation errors.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 5; 216--229
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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