Temat: high strength steel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Innovative materials in construction of semitrailers car
Autorzy:: Mazur, M.
Ulewicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/114819.pdf
Data publikacji:: 2014
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: high-strength steel
mechanical properties
fatigue properties
semi-trailers
stal wysokowytrzymałościowa
właściwości mechaniczne
właściwości zmęczeniowe
naczepy
Opis:: In this work are defined steels requirements, which are used in the construction of semi-trailers car. Mechanical properties and fatigue of selected high-strength steel are shown in the paper. Complete characterization of the tested materials will be the base to identify new applications of these material in the construction of semi-trailers. From the practical point of view the durability of some components in the automotive industry and similar technical applications such as special semitrailers is ranging between 10⁸ and 10¹⁰ cycles. But, only few experimental results beyond 10⁷ cycles are available now. The main objective of this research was to provide independent results to the company which uses Hardox steel in the construction of semitrailers.
Źródło:: Zeszyty Naukowe. Quality. Production. Improvement; 2014, 1 (1); 45-54
2544-2813
Pojawia się w:: Zeszyty Naukowe. Quality. Production. Improvement
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Microstructure and residual stress analysis of Strenx 700 MC welded joint
Autorzy:: Trško, Libor
Lago, Ján
Jambor, Michal
Nový, František
Bokůvka, Otakar
Florková, Zuzana
Powiązania:: https://bibliotekanauki.pl/articles/1839521.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: residual stress
high strength steel
welding
microstructure
grain coarsening
naprężenia szczątkowe
stal o wysokiej wytrzymałości
spawalnictwo
mikrostruktura
Opis:: High strength low alloy (HSLA) steels are a new generation of plain carbon steels with significantly improved mechanical properties while maintaining good weldability with common commercial techniques. Residual stress and microstructural analysis of welded HSLA Strenx 700 MC was carried out in this research. Results have shown that the welding process causes significant grain coarsening in the heat affected zone. The microstructural changes are also accompanied with creation of tensile residual stress field in the weld metal and heat affected zone, reaching up-to depth of 4 mm. Tensile residual stresses are well known for acceleration of fatigue crack initiation and together with coarse grains can lead to significant decrease of the fatigue properties of the welded structure.
Źródło:: Production Engineering Archives; 2020, 26, 2; 41-44
2353-5156
2353-7779
Pojawia się w:: Production Engineering Archives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Determination of the optimum percentage of high strength bars in RC beams with combined reinforcement using FEM
Autorzy:: Selejdak, Jacek
Blikharskyy, Yaroslav
Bobalo, Taras
Kopiika, Nadiia
Powiązania:: https://bibliotekanauki.pl/articles/973049.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: deformability
serviceability
combined reinforcement
high-strength rebar
steel plate
belka żelbetowa
beton zbrojony
konstrukcja żelbetowa
odkształcalność
blacha stalowa
FEM
pręt zbrojeniowy
Opis:: In this work on the basis of the developed and tested mathematical model, the numerical experiment is conducted in order to study in more detail the specifics of performance of concrete beams` with combined reinforcement. For this purpose nine series of reinforced concrete beams with different combination of steel bars (A400C, At800, A1000) and ribbon reinforcement (C275) were modeled. In the developed series two classes of concrete were used: C50/60, C35/45. The functions derived on the basis of mathematical modeling allow us to determine the recommended percentage of high-strength reinforcement of common reinforced concrete structures with single reinforcement. Therefore, the possibility is obtained to reduce the total structures` reinforcement percentage, increasing their deformability by the specified value without affecting the bearing capacity.
Źródło:: System Safety : Human - Technical Facility - Environment; 2020, 2, 1; 230-236
2657-5450
Pojawia się w:: System Safety : Human - Technical Facility - Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Mathematical modelling of stress-strain state of steel-concrete beams with combined reinforcemenent
Autorzy:: Selejdak, Jacek
Bobalo, Taras
Blikharskyy, Yaroslav
Dankevych, Iryna
Powiązania:: https://bibliotekanauki.pl/articles/26081279.pdf
Data publikacji:: 2023
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: wzmocnienie łączone
pręty zbrojeniowe o wysokiej wytrzymałości
konstrukcje stalowo-betonowe
projektowanie konstrukcji żelbetowych
wzmocnienie zewnętrzne
combined reinforcement
high-strength rebar
steel-concrete structures
design of RC structures
external reinforcement
Opis:: Most of the modern computer software for the building structures` calculation is based on mathematical dependencies which make it possible to analyse rather complex stress-strain state of structures subjected to loading. As a rule, the calculation is based on the finite element method and is reduced to the calculation of deformations arising in structures due to the action of external forces with the use of real strain diagrams of materials, σ-ε diagrams for concrete and reinforcement. Modern normative regulations for reinforced concrete structures` calculation are also based on the deformation model using material deformation diagrams, which are as close to the real ones, as possible. Therefore, this study was aimed to investigate in more detail the stress-strain state and the physical essence of the processes occurring in reinforced concrete structures with combined reinforcement according to mathematical approaches and regulations of DBN B.2.6-98:2009 and DSTU B. In 2.6-156:2010. Namely, in the research is analysed the combined reinforcement of S245 steel tapes and A1000 rebar, which is used in the production of reinforced concrete elements. The results of mathematical modelling were compared with the calculation results, according to DBN B.2.6-98: 2009 and DSTU B. B 2.6-156:2010, as well as with field experimental data. Therefore, the conclusion could be made, whether it is possible to use this technique with sufficient accuracy to calculate reinforced concrete structures with combined reinforcement.
Źródło:: Production Engineering Archives; 2023, 29, 1; 108--115
2353-5156
2353-7779
Pojawia się w:: Production Engineering Archives
Dostawca treści:: Biblioteka Nauki

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