Temat: isotropic materials

Skocz do pozycji: 1.

Tytuł:: Bending of Orthotropic Plate Containing a Crack Parallel to the Median Plane
Autorzy:: Shvabyuk, V.
Pasternak, I.
Sulym, H.
Tematy:: zginanie
płyta ortotropowa
izotropia
anizotropia
bending
orthotropic plate
isotropic materials
anisotropy; Pokaż więcej
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:: https://bibliotekanauki.pl/articles/386368.pdf Link otwiera się w nowym oknie
Opis:: This paper considers cylindrical bending of the plate containing a crack parallel to plate's faces. The analytical model of the problem is obtained using the improved theory of plates bending, which considers transverse deformation of the plate. Received analytical results are compared with the numerical data of the boundary element approach, which is modified to suit the considered contact problem. The results of analytical and numerical techniques are in a good agreement both for the isotropic and anisotropic plates.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: A numerical study of isotropic and anisotropic constitutive models with relevance to healthy and unhealthy cerebral arterial tissues
Autorzy:: Sequeira, Adélia
Dedè, Luca
Gambaruto, Alberto
Quarteroni, Alfio
Tricerri, Paolo
Opis:: This paper presents an analysis of hyperelastic constitutive models for continuous bodies both from a modeling and numerical point of view. Contributions are made within the context of finite element numerical simulations. Numerical results with relevance to flows in the cardiovascular system are outlined in the case of a sophisticated fluid–structure interaction problem, in specific complex geometries of anatomically accurate cerebral arteries in diseased state. In this regard, the work carefully outlines the numerical validation of constitutive models for healthy and unhealthy cerebral arterial tissues by means of simulations of static inflation tests on an idealized specimen of anterior cerebral artery (ACA). The healthy tissue is described by means of isotropic and anisotropic models that, are fitted with respect to experimental data describing the mechanical behavior of the ACA; the numerical results are presented highlighting the most important numerical aspects influencing the correct and efficient simulation of the mechanics of continuous bodies such as, for instance, the arterial wall. We further consider numerical simulations of unhealthy conditions of the tissue by taking into account different levels of weakening of its mechanical properties. Taking the cerebral cardiovascular system as a challenging test problem, we focus on the study of the effects of the imposed mechanical levels of degradation on kinematic quantities of interest by simulating static inflation tests for the different models. This work does not aim to propose a new mathematical model for the mechanical damage occurring at the onset of cardiovascular diseases such as cerebral aneurysms. The modeling and numerical techniques presented may be applied to a wide range of problems, equally challenging to that of the cardiovascular system with complex structural models and fluid–structure coupling.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Interpretation of isotropic and kinematic hardening of materials
Autorzy:: Grzywiński, M.
Kowalik, M.
Tematy:: materiał
wzmocnienie materiałów
wzmocnienie izotropowe
wzmocnienie kinematyczne
material
materials hardening
isotropic hardening
kinematic hardening; Pokaż więcej
Wydawca:: Politechnika Częstochowska
Powiązania:: https://bibliotekanauki.pl/articles/2068410.pdf Link otwiera się w nowym oknie
Opis:: The purpose of the paper is to discuss the hardening problems in materials. Kinematic and isotropic hardening are considered. The paper has a review character.
W pracy przedyskutowano problemy wzmocnienia materiałów. Analizowano zarówno wzmocnienie kinematyczne, jak i izotropowe. Praca ma charakter przeglądowy.
Dostawca treści:: Biblioteka Nauki

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