Autor: Janus-MIchalska, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study on the size effect of auxetic cellular materials
Autorzy:: Janus-Michalska, M.
Powiązania:: https://bibliotekanauki.pl/articles/265410.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: negative Poissons ratio
auxetic structures
size effect
właściwości sprężyste
próba ścinania
kompresja
Opis:: The objective of this paper is to investigate the effects of scale of an auxetic cellular material sample on the evaluation of elastic properties. Size and boundary effects are studied in detail. This is achieved by conducting computer simulations of the auxetic structure under the typical loading exerted by the compression and simple shearing test performed by means of ABAQUS FEA. The material microstructure is discretized by the plane network of Timoshenko beam elements. The results of the studies give insight to the scale effects. Structures with designed properties can be potentially used for engineering applications.
Źródło:: International Journal of Applied Mechanics and Engineering; 2017, 22, 3; 749-757
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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

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