Sangam: A Confluence of Knowledge Streams

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

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dc.creator Arachchige, B.
dc.creator Ghasemnejad, Hessam
dc.date 2018-06-28T15:17:18Z
dc.date 2018-06-28T15:17:18Z
dc.date 2018-06-02
dc.date.accessioned 2022-05-25T16:36:39Z
dc.date.available 2022-05-25T16:36:39Z
dc.identifier B. 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. 565-578
dc.identifier 0263-8223
dc.identifier https://doi.org/10.1016/j.compstruct.2018.05.150
dc.identifier http://dspace.lib.cranfield.ac.uk/handle/1826/13285
dc.identifier 20505493
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/182144
dc.description An 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.
dc.language en
dc.publisher Elsevier
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Analytical
dc.subject Impact
dc.subject Variable stiffness
dc.subject Sandwich
dc.subject LSDYNA
dc.title Effect of variable core stiffness on the impact response of curved sandwich plates
dc.type Article


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