Stress redistributions in adhesively bonded double-lap joints, with elastic-perfectly plastic adhesive behavior, subjected to axial lap-shear cyclic loading

Markolefas, SI; Papathanassiou, ThK

dc.contributor.author	Markolefas, SI	en
dc.contributor.author	Papathanassiou, ThK	en
dc.date.accessioned	2014-03-01T01:31:59Z
dc.date.available	2014-03-01T01:31:59Z
dc.date.issued	2009	en
dc.identifier.issn	0143-7496	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20005
dc.subject	Composites	en
dc.subject	Fatique	en
dc.subject	Lap-shear	en
dc.subject	Stress analysis	en
dc.subject	Stress redistribution	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Adhesive layers	en
dc.subject.other	Applied loads	en
dc.subject.other	Basic parameters	en
dc.subject.other	Composites	en
dc.subject.other	Constitutive relations	en
dc.subject.other	Crack growth rates	en
dc.subject.other	Current analysis	en
dc.subject.other	Current models	en
dc.subject.other	Cyclic loadings	en
dc.subject.other	Experimental data	en
dc.subject.other	Fatique	en
dc.subject.other	Lap joint	en
dc.subject.other	Lap-shear	en
dc.subject.other	Linear elastic behavior	en
dc.subject.other	Load direction	en
dc.subject.other	Numerical models	en
dc.subject.other	Peak stress	en
dc.subject.other	Peel stress	en
dc.subject.other	Plastic shear	en
dc.subject.other	Plastic strain	en
dc.subject.other	Plastic zones	en
dc.subject.other	Reference models	en
dc.subject.other	Reference state	en
dc.subject.other	Shear-lag model	en
dc.subject.other	Simple model	en
dc.subject.other	Simplified analysis	en
dc.subject.other	Stress redistribution	en
dc.subject.other	Stress-strain	en
dc.subject.other	Arch bridges	en
dc.subject.other	Crack propagation	en
dc.subject.other	Cracking (chemical)	en
dc.subject.other	Cyclic loads	en
dc.subject.other	Elasticity	en
dc.subject.other	Plastic adhesives	en
dc.subject.other	Plastics	en
dc.subject.other	Shear stress	en
dc.subject.other	Strain	en
dc.subject.other	Strength of materials	en
dc.subject.other	Structural design	en
dc.subject.other	Unloading	en
dc.subject.other	Stress analysis	en
dc.title	Stress redistributions in adhesively bonded double-lap joints, with elastic-perfectly plastic adhesive behavior, subjected to axial lap-shear cyclic loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.ijadhadh.2009.04.001	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.ijadhadh.2009.04.001	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	A shear-lag model is developed in order to evaluate stress redistributions in double-lap joints under axial (tensile) lap-shear cyclic loading. The adherend materials exhibit linear elastic behavior, whereas the material of the adhesive layer satisfies the elastic-perfectly plastic shear stress-strain constitutive relation. The reference state (from which the stresses are redistributed) is based on the standard elastic-perfectly plastic shear-lag analysis for double-lap joints. The main conclusion of the current analysis is that, during unloading, shear stresses of opposite sign may develop in the plastic zones of the adhesive layer, at the ends of the overlap, without reversing the direction of the applied load. A simple model for evaluating the variation of the maximum peel stress in the adhesive layer, based on the variation of the peak shear stress, demonstrates that the sign of peel stresses may alternate, as well. Under cyclic (fatigue) loading, the range of the peak stresses in the adhesive layer is the basic parameter for the evaluation of the variation of the energy release rate and the associated crack growth rate in the overlap. In this framework, the Current simplified analysis may provide a reference model for comparisons with experimental data or with results which are based on more complex numerical models. The current model can be readily extended to cover the cases of development of plastic zones in the adhesive layer with shear stresses and plastic strains of opposite sign (during unloading or during load direction change). (c) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	International Journal of Adhesion and Adhesives	en
dc.identifier.doi	10.1016/j.ijadhadh.2009.04.001	en
dc.identifier.isi	ISI:000268626000007	en
dc.identifier.volume	29	en
dc.identifier.issue	7	en
dc.identifier.spage	737	en
dc.identifier.epage	744	en