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http://yadda.icm.edu.pl:443/baztech/element/bwmeta1.element.baztech-article-BUJ5-0030-0088

Czasopismo

Journal of KONES

Tytuł artykułu

Influence of hardness on mechanical properties of elastomers

Autorzy Ochelski, S.  Bogusz, P.  Kiczko, A. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN In this paper, elastomers with different hardness factors were examined to evaluate the influence of the hardness on their mechanical properties. The following hardness numbers, measured in Shore A hardness scale, were investigated: 40; 60; 70 and 90°. Basic mechanical tests i.e. axial tension and axial compression have been performed in order to calculate elastic properties and stress values corresponding to the fixed strains: epsilon = 0.2; 0.3 and 0.5. The sigma (epsilon) dependences from the tension and compression tests are nonlinear and have different shapes. The tension plot can be described by a convex parabola, while the compression curve can be approximated by a concave one. dynamic load tests with loading freąuencies 0.01; 0.1; 1.0 and 3,OHz were performed in order to determine the hysteresis loop and to obtain force and displacement dependences in time. From those results the following factors were calculated: relative damping coefficient and mechanical loss angle, as well as their dependence on load frequencies. The influence of hardness on both in-phase and out-of-phase components of normal modulus were investigated. The sensitivity of the examined elastomers to the loading rate was also investigated.
Słowa kluczowe
EN experimental research   elastomers   mechanical properties   relative damping coefficient   mechanical loss angle  
Wydawca Institute of Aviation
Czasopismo Journal of KONES
Rocznik 2010
Tom Vol. 17, No. 1
Strony 317--325
Opis fizyczny Bibliogr. 4 poz., rys.
Twórcy
autor Ochelski, S.
autor Bogusz, P.
autor Kiczko, A.
  • Military University of Technology Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Kaliskiego Street 2, 00-908 Warsaw 49, Poland tel.: +48 22 683-95-48 fax +48 22 683-72-21, akiczko@wat.edu.pl
Bibliografia
[1] Pekalak, M., Radkowski, S., Rubber elastic elements (in Polish), PWN, p. 143, 1989.
[2] Osinski, Z., Clutches and breakes (in Polish), PWN, Warsaw 1985.
[3] Krawczuk, A. S., Majboroda, V. J., Uzuncew, U. S., Mechanics of polymer and composite materials (in Polish), Science, Moscow 1985.
[4] Multi-author work. Rubber. Engineering and technical guide. (in Polish) , WNT, Warsaw 1981.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-article-BUJ5-0030-0088
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