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Wyświetlanie 1-3 z 3
Tytuł:
Contact problem of conducting and heated punch on a multifield foundation
Autorzy:
Rogowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/264461.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
magneto-electro-thermo-elastic medium
conducting and heated punch
contact problem
exact solution
sprężystość materiałów
potencjał elektryczny
potencjał magnetyczny
Opis:
The solution for a multifield material subjected to temperature loading in a circular region is presented in an explicit analytical form. The study concerns the steady – state thermal loading infinite region (heated embedded inclusion), half – space region and two – constituent magneto – electro – thermo – elastic material region. The new mono – harmonic potential functions, obtained by the author, are used in the analysis of punch problem. The more interested case in which the contact region is annular is analyzed. By using the methods of triple integraf equations and series solution technique the solution for an indentured multifield substrate over an annular contact region is given. The sensitivity analysis of obtained indentation parameters shows some interesting points. In particular, it shows that the increasing of the applied electric and magnetic potentials reduces the indentation depth in multifield materials.
Źródło:
International Journal of Applied Mechanics and Engineering; 2015, 20, 3; 531-564
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of contact stress distribution for foam seat and seat of auxetic spring skeleton
Autorzy:
Janus-Michalska, M.
Jasińska, D.
Smardzewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/265792.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
hipersprężystość
poliamid
symulacja komputerowa
parametry materiałów
auxetic structures
seat
utility load
contact problem
Opis:
The objective of this paper is to present and compare the results of numerical solutions of contact problem for two types of seats subjected to typical sitting loadings. The first seat is made of a typical hyperelastic foam, the other is designed with an auxetic polyamid spring skeleton. Computer simulations of the seat structure under a typical static loading exerted by a human body are performed by means of ABAQUS FEA. The model provides an insight into deformation modes and stress field in relation to geometric and material parameters of the seat structure.The other type of seat, due to the fact of global auxecity and progressive springs characteristics reduces contact stress concentrations, giving an advantegous distribution of pressure and provides the sensation of physical comfort. The proper seat skeleton shape leads to an improvement of ergonomic quality.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 55-72
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frictionless contact between a rigid indentor and a transversely isotropic functionally graded layer
Autorzy:
Patra, R.
Barik, S. P.
Chaudhuri, P. K.
Powiązania:
https://bibliotekanauki.pl/articles/947340.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
równanie całkowe Fredholma
transformacja Hankela
rozkład naprężeń
functionally graded material
transversely isotropic medium
Hankel transform
contact problem
Fredholm integral equation
Opis:
This article is concerned with the study of frictionless contact between a rigid punch and a transversely isotropic functionally graded layer. The rigid punch is assumed to be axially symmetric and is supposed to be pressing the layer by an applied concentrated load. The layer is resting on a rigid base and is assumed to be sufficiently thick in comparison with the amount of indentation by the rigid punch. The graded layer is modeled as a non-homogeneous medium. The relationship between the applied load P and the contact area is obtained by solving the mathematically formulated problem through using the Hankel transform of different order. Numerical results have been presented to assess the effects of functional grading of the medium and the applied load on the stress distribution in the layer as well as on the relationship between the applied load and the area of contact.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 3; 655-671
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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