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Buckling analysis of delaminated composite beams

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dc.contributor.author Atlihan, G.
dc.date.accessioned 2019-08-16T12:34:43Z
dc.date.available 2019-08-16T12:34:43Z
dc.date.issued 2013
dc.identifier.issn 09714588 (ISSN)
dc.identifier.uri http://acikerisim.pau.edu.tr:8080/xmlui/handle/11499/8041
dc.description.abstract The effects of stacking sequences, fiber orientation angles, boundary conditions and delamination numbers on the critical buckling loads of the laminated composite beams have been investigated analytically and numerically. Firstly, an analytical model is presented to take into consideration the reduction in stiffness of the beam due to the presence of the delamination in the beam. Then, two-dimensional finite element models for the composite beams having single/double middle delaminations have been established by using contact element at ANSYS commercial program. A good agreement between theoretical and finite element results has been found. It is seen that the buckling loads vary with changing stacking sequences, orientation angles and boundary conditions. The results show that a reduction in the critical buckling loads occurs when delamination length increases. In the numerical analysis, the appropriate buckling load values of the laminated beams are obtained by using normal penalty stiffness that is chosen as elasticity modulus for contact elements in the delamination region.
dc.language.iso English
dc.subject Analytical study
dc.subject Buckling analysis
dc.subject Delaminated composite beam
dc.subject Numerical study
dc.subject Analytical studies
dc.subject Critical buckling loads
dc.subject Delaminated composite beams
dc.subject Delamination length
dc.subject Fiber orientation angle
dc.subject Laminated composite beam
dc.subject Boundary conditions
dc.subject Buckling
dc.subject Composite beams and girders
dc.subject Stiffness
dc.subject Delamination
dc.title Buckling analysis of delaminated composite beams
dc.type Article
dc.relation.journal Indian Journal of Engineering and Materials Sciences
dc.identifier.volume 20
dc.identifier.issue 4
dc.identifier.startpage 276
dc.identifier.endpage 282
dc.identifier.index Scopus

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