Effect of variable core stiffness on the impact response of curved sandwich plates

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dc.contributor.authorArachchige, B.
dc.contributor.authorGhasemnejad, Hessam
dc.date.accessioned2018-06-28T15:17:18Z
dc.date.available2018-06-28T15:17:18Z
dc.date.issued2018-06-02
dc.description.abstractAn extensive analytical model to determine behaviour of curved sandwich plates with variable stiffness cores and face-sheets under low velocity impact with foam core is presented in this paper. A developed method is introduced to determine effective dynamic stiffness of the face-sheets and core with variable stiffness. A modified spring-mass-dashpot model was used to obtain the contact force function related to effective dynamic stiffness and effective dynamic frequency to determine the contact force histories by impact of a hemispherical-nose impactor. A parametric study was also performed to understand the effects of several factors such as impactor velocity, face-sheet thickness, core thickness (constant and variable stiffness), layup orientation and curvature on the contact force histories of curved sandwich plates. Different geometries of curved sandwich plates are analysed to study their performance under impact loading. Numerical analysis was performed in LS-DYNA to further validate with the developed analytical models.en_UK
dc.identifier.citationB. Arachchige and H. Ghasemnejad. Effect of variable core stiffness on the impact response of curved sandwich plates. Composite Structures, Volume 200, Issue September, 2018, pp. 565-578en_UK
dc.identifier.cris20505493
dc.identifier.issn0263-8223
dc.identifier.urihttps://doi.org/10.1016/j.compstruct.2018.05.150
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13285
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAnalyticalen_UK
dc.subjectImpacten_UK
dc.subjectVariable stiffnessen_UK
dc.subjectSandwichen_UK
dc.subjectLSDYNAen_UK
dc.titleEffect of variable core stiffness on the impact response of curved sandwich platesen_UK
dc.typeArticleen_UK

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