Evaluation of interlaminar shear stresses in a fiber-reinforced laminated beam by the ifrm theory

• Autorzy: Kurashige M. , Yamamoto K. , Watanabe K.
• Języki publikacji: EN

Abstrakty

EN

By using the linear IFRM theory, interlaminar shear stresses are estimated for a fiber-reinforced laminated beam subjected to a line force. The analysis for this estimation is fully three-dimensional. The beam has three layers. Its core is reinforced in the width direction, whereas its skins in the longitudinal direction. The skins are also assumed to have infinitesimal thickness for the sake of analytical simplicity. In spite of this assumption, inextensibility of the skin layers is valid, since the IFRM theory postulates that the materials are completely inextensible in fiber directions. The analytical results explain very well the observations of delamination shapes and justify applicability of various beam theories to the theoretical analysis of the observations in beam impact tests by use of a line nose impactor. It is also shown that the IFRM theory can explain the observed slight deviation of the delamination from the interface at its early stage.

Słowa kluczowe

EN

IFRM theory; fiber-reinforced beam; interlaminar shear stress; impact test; delamination

PL

wytrzymałość materiałów

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Applied Mechanics and Engineering
• Rocznik: 1998
• Tom: Vol. 3, no 4
• Strony: 601--619
• Opis fizyczny: Bibliogr. 22 poz., rys., wykr.

Twórcy

autor

Kurashige M.

autor

Yamamoto K.

autor

Watanabe K.

• Iwate University, Department of Mechanical Engineering Ueda 4-3-5, Morioka 020-8551, JAPAN