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Pre-stressed adhesive strap joints for thick composite sandwich structures

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dc.contributor.author Canyurt, O.E.
dc.contributor.author Zhang, J.
dc.date.accessioned 2019-08-16T11:35:39Z
dc.date.available 2019-08-16T11:35:39Z
dc.date.issued 2006
dc.identifier.issn 00207403 (ISSN)
dc.identifier.uri http://acikerisim.pau.edu.tr:8080/xmlui/handle/11499/4624
dc.description.abstract A simple but effective design to improve the strength of thick adhesive composite strap joints is validated with experiment and finite element method. The strap joint under investigation, with a particular application to naval ship structures, consists of two thick woven E-glass/vinyl ester laminates joined together with two steel doublers. Longitudinal tensile loads are applied to the joints, resulting in large concentrated shear and peel stresses near the free edges of bondlines. The new design intends to reduce the adhesive peel stress by application of through-the-thickness compressive pre-stress along the bondline and thus leads to an increase of joint strength. Experiment results show that all the joint failures are delamination of the top layer of the laminated adherends. The test further confirms that joint strength increases significantly by applying the transverse pre-stress. Finite element analysis reveals that the pre-stress can effectively reduce the magnitude even reverse the sign of the peel stress in the adhesive layer and the adherends. Recessing the adhesive leading edge could magnify the pre-stress effect and reduce the adhesive peel stress, but would increase the shear stress. For those composite joints with low transverse interlaminar strength and susceptible to delamination, this simple design/technique can considerably improve their joint strength. © 2005 Elsevier Ltd. All rights reserved.
dc.language.iso English
dc.relation.isversionof 10.1016/j.ijmecsci.2005.11.004
dc.subject Adhesive strap joints
dc.subject Pre-stressed joints
dc.subject Thick composite laminates
dc.subject Adhesive joints
dc.subject Delamination
dc.subject Finite element method
dc.subject Laminated composites
dc.subject Naval vessels
dc.subject Steel structures
dc.subject Structural design
dc.subject Steel doublers
dc.subject Composite structures
dc.title Pre-stressed adhesive strap joints for thick composite sandwich structures
dc.type Article
dc.relation.journal International Journal of Mechanical Sciences
dc.identifier.volume 48
dc.identifier.issue 4
dc.identifier.startpage 389
dc.identifier.endpage 399
dc.identifier.index Scopus


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