On the modeling of periodic sandwich structures with the use of the broken line hypothesis

• Autorzy: Marczak J.
• Języki publikacji: EN

Abstrakty

EN

In this paper a dynamic analysis of sandwich plate with a certain periodic microstructure is considered. The initial system of governing equations is derived basing on the classic broken line hypothesis. As a result of transformations one can obtain a system of three differential equations of motion with periodic, highly oscillating and non-continuous coefficients. In order to derive a system of equations with constant coefficients tolerance averaging technique is applied. Eventually, in the calculation example a free vibration analysis of certain periodic plate strip is performed with the use of both the derived model and a FEM model. It can be observed that the consistency of obtained results is highly dependent on the calculation assumptions.

Słowa kluczowe

EN

sandwich structure; periodic microstructure; free vibrations; broken-line hypothesis

PL

struktury wielowarstwowe; mikrostruktura periodyczna; drgania swobodne; hipoteza linii łamanej

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 22, nr 3
• Strony: 761--773
• Opis fizyczny: Bibliogr. 18 poz., rys., 1 wykr.

Twórcy

autor

Marczak J.

• Department of Structural Mechanics, Łódź University of Technology, Politechniki 6, 90-924 Łódź, Poland

Bibliografia

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