Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "thermal-stress state" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Finite element analysis of thermal stress in Cu2O coating synthesized on Cu substrate
Autorzy:
Shorinov, O.
Powiązania:
https://bibliotekanauki.pl/articles/24200560.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
stress-strain state
residual stress
oxide layers
thermo-mechanical modelling
coefficient of thermal expansion
stan naprężenie-odkształcenie
naprężenie szczątkowe
warstwy tlenkowe
modelowanie termomechaniczne
współczynnik rozszerzalności cieplnej
Opis:
Purpose: The paper aims to find the magnitude and nature of thermal residual stresses that occur during cooling of a copper sample with a thermally synthesized oxide layer of Cu2O. Design/methodology/approach: Thermo-mechanical analysis was performed by the finite element method using Ansys Software. The results of thermal analysis were used to study the resulting stress-strain state of the thin film/coating system after cooling. Findings: Based on the modeling results, the paper determined the most stress-strain areas of the sample with a coating, which are the free edges of the interfaces between the copper substrate and the Cu2O oxide layer. Research limitations/implications: The main limitations of the study are the use of certain simplifications in the condition setup, for instance, uniform cooling of the thin film/coating system, homogeneity and isotropy of substrate and thin film materials, invariance of their properties with temperature changes, etc. Practical implications: The results obtained can be used to control the stress-strain state of the thin film/coating system and prevent deformations and destruction of thin-film structures during their production and operation of products with them. Originality/value: The study of new promising methods for the formation of oxide nanostructures, for instance in a plasma environment, requires a sufficient theoretical basis in addressing the origin and development of stresses.
Źródło:
Archives of Materials Science and Engineering; 2022, 115, 2; 58--65
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stress-strain state simulation of non-uniformly heated elements of components and assemblies of automotive
Autorzy:
Hrevtsev, O.
Selivanova, N.
Popovych, P.
Poberezhny, L.
Brych, V. Ya.
Rudyak, Yu.
Shevchuk, O.
Bakulina, N.
Rozum, R.
Buriak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2201070.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
mathematical model
elasticity theory
axisymmetric problems
critical infrastructure
metal structures
stress-strain state
displacement functions
thermal deformation
thermodynamically inverse process
cylinder
finite length
thickness
model matematyczny
teoria sprężystości
symetria osiowa
infrastruktura krytyczna
konstrukcje metalowe
stan naprężeń i odkształceń
odkształcenie termiczne
proces termodynamiczny
proces odwracalny
skończona długość
grubość
Opis:
Purpose Develop a method for determining and evaluating the stress-strain state, particularly the distribution of thermomechanical stresses in the materials of individual rotating parts of vehicles. Design/methodology/approach The proposed method is based on the principle of gradual approximations of the solution when the boundary conditions are satisfied on the curvilinear limiting surfaces of the disk body. Findings The proposed method of determining and estimating the distribution of thermomechanical stresses in the disk material makes it possible to take into account the variable geometry: thickness and presence of a hole in the central part of the disk, also correctly determine stress-strain state at any point of unevenly heated rotating axial body. Research limitations/implications The work uses generally accepted assumptions and limitations for thermomechanical calculations. Originality/value It is proved that in real disks, the stress-strain state is spatial, and the well - known method based on the hypotheses of the plane-stress state does not provide the possibility of calculating the values of stresses in the thickness of the disk. The obtained results can be used to improve the methodology of auto technical examination of road accidents. In addition, they can be taken into account by bus drivers on urban routes when choosing a safe distance in heavy traffic, as well as design engineers of car brake systems.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2022, 115, 1; 26--32
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies