Temat: numerical modeling stress - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical analysis of stress and strain occuring in the contact area of ceramic head - ceramic cup in the hip endoprostheses
Autorzy:: Sobociński, M.
Powiązania:: https://bibliotekanauki.pl/articles/122522.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: endoprosthesis of hip joint
numerical modeling stress
strain Weibull’s model
model naprężenia Weibulla
modelowanie numeryczne odkształceń
Opis:: The paper presents the results of numerical analysis of the system “ceramic head - ceramic cup” in the hip joint endoprosthesis. Applying the Al2O3 ceramics in this kind of solutions, apart from all values of this material, can lead to grinding, if a high load is used. The analysis was run on the ADINA system. The geometrical model was elaborated on real measurements of the elements of endoprosthesis and also on the results provided by the producer.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2013, 12, 2; 89-96
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Model of hardening elements of tools steel C80U
Autorzy:: Domański, T.
Powiązania:: https://bibliotekanauki.pl/articles/122906.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: heat treatment
phase transformations
stress
strain
numerical modeling
obróbka cieplna
przemiany fazowe
naprężenie
odkształcenie
modelowanie numeryczne
Opis:: Hardening is one of the manufacturing processes used for improving mechanical properties such as strength, hardness and wear resistances of the mechanical components for machine parts. This paper describes modelling of the processes of steel C80U hardening. The first priority was given to thermal phenomena, phase transformations in a solid state and mechanical phenomena. A numerical algorithm of thermal phenomena was based on the Finite Elements Methods in the Galerkin formula of the heat transfer equations. In the model of phase transformations, in simulations heating process, isothermal or continuous heating (CHT) was applied, whereas in the cooling process continuous cooling (CCT) of the steel. In the model of mechanical phenomena, apart from thermal, plastic and structural strain, transformations plasticity was also taken into account. The stress and strain fields are obtained using the solution of the Finite Elements Method of the equilibrium equation in rate form. The thermophysical constants occurring in constitutive relation depend on temperature and phase composite. In order to determine plastic strain, the Huber-Mises condition with isotropic strengthening was applied, whereas for determination of transformation plasticity a modified Leblond model was used. In order to evaluate the quality and usefulness of the presented models a numerical analysis of temperature field, phase fraction, stress and strain associated hardening process of a cone-shaped fang lathe made of tool steel was carried out.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2014, 13, 4; 35-40
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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