Comparison of contact stress distribution for foam seat and seat of auxetic spring skeleton

• Autorzy: Janus-Michalska M. , Jasińska D. , Smardzewski J.

Identyfikatory

DOI

10.2478/ijame-2013-0004

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

auxetic structures; seat; utility load; contact problem

PL

hipersprężystość; poliamid; symulacja komputerowa; parametry materiałów

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2013
• Tom: Vol. 18, no. 1
• Strony: 55--72
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Janus-Michalska M.

• Institute of Structural Mechanics Cracow University of Technology ul. Warszawska 24, 31-155 Kraków, POLAND

autor

Jasińska D.

• Institute of Structural Mechanics Cracow University of Technology ul. Warszawska 24, 31-155 Kraków, POLAND

autor

Smardzewski J.

• Department of Furniture Design Poznań University of Life Science ul. Wojska Polskiego 28, 60-637 Poznań, POLAND

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