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Impact fatigue damage of glass/epoxy plates predicted from three parameters model
Last modified: 2013-05-07
Abstract
The objective of this experimental investigation is to obtain a detailed understanding of
damage evolution of composite plates and its evolution with regard to impact energy and
impact number. The investigation of new damage models is one of the ways to be
explored, in order to explain the entire phenomenon accompanying impact fatigue
loading on composite. In this study a comparison between two composite systems is
carried out to determine the effect of impact energy and number of impacts on stiffness
and damage parameter evolutions. A three coefficients damage model, proposed in a
former work, is applied to the case of this study. It has been found that cross ply laminate
can provide both an inherent capability to dissipate energy by developing large areas of
delamination and greater perforation strength than glass/epoxy woven fabric system.
damage evolution of composite plates and its evolution with regard to impact energy and
impact number. The investigation of new damage models is one of the ways to be
explored, in order to explain the entire phenomenon accompanying impact fatigue
loading on composite. In this study a comparison between two composite systems is
carried out to determine the effect of impact energy and number of impacts on stiffness
and damage parameter evolutions. A three coefficients damage model, proposed in a
former work, is applied to the case of this study. It has been found that cross ply laminate
can provide both an inherent capability to dissipate energy by developing large areas of
delamination and greater perforation strength than glass/epoxy woven fabric system.
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