A modelling technique for calculating stress intensity factors for structures reinforced by bonded straps. Part II: Validation

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dc.contributor.authorBoscolo, M.-
dc.contributor.authorZhang, X.-
dc.date.accessioned2011-11-13T23:21:53Z
dc.date.available2011-11-13T23:21:53Z
dc.date.issued2010-04-01T00:00:00Z-
dc.description.abstractIn this second part of the two-part paper validation of the 2D FE modelling technique described in the first part is presented for a range of test configurations. Each mechanism that influences crack growth behaviour of strap reinforced structures is modelled for different substrate geometries, strap materials and dimensions in order to test the accuracy and robustness of the methodology. First, calculated through-thickness strain energy release rate distribution is compared with the result of a 3D FE model to validate this 2D model. Second, calculated disbond areas, thermal residual stresses and their redistribution with crack propagation are validated against experimental measurements. Third, influence of geometric nonlinearity and the need to use the alternate analysis method described in part I are demonstrated by examples, and errors generated by not following this analysis rule are given. Finally, using the 2D model calculated stress intensity factors, fatigue crack growth rates and lives are predicted for different specimens, strap materials and applied stress levels and are compared with the experimental tests. Good or acceptable agreement has been achieved for each case.en_UK
dc.identifier.citationM. Boscolo, X. Zhang, A modelling technique for calculating stress intensity factors for structures reinforced by bonded straps. Part II: Validation, Engineering Fracture Mechanics, Volume 77, Issue 6, April 2010, Pages 896-907-
dc.identifier.issn0013-7944-
dc.identifier.urihttp://dx.doi.org/10.1016/j.engfracmech.2010.01.005-
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/4323
dc.language.isoen_UK-
dc.publisherElsevier Science B.V., Amsterdam.en_UK
dc.subjectBonded crack retardersen_UK
dc.subjectSelective reinforcementen_UK
dc.subjectFatigue crack growth lifeen_UK
dc.subjectThermal residual stressesen_UK
dc.subjectDelaminationen_UK
dc.subjectSecondary bendingen_UK
dc.subjectComposite patch repairsen_UK
dc.titleA modelling technique for calculating stress intensity factors for structures reinforced by bonded straps. Part II: Validationen_UK
dc.typeArticle-

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