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Non-Linear Stability and Failure of Laminated Composite Stiffened Cylindrical Panels Subjected to In-Plane Impulse Loading

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dc.contributor.author Patel, S. N.
dc.contributor.author Kumar, Rajesh
dc.date.accessioned 2022-12-17T13:49:51Z
dc.date.available 2022-12-17T13:49:51Z
dc.date.issued 2021-02
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S2352012420306627
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/7907
dc.description.abstract In this article, the non-linear dynamic buckling behavior and failure of laminated composite stiffened cylindrical (LCSC) panel is performed in the finite element framework when subjected to sinusoidal and rectangular in-plane pulse loading. Balanced symmetric cross-ply laminates and balanced symmetric angle ply laminates are considered in this study. The first ply failure load (FPFL) of the panel is evaluated and checked whether it occurs before the non-linear dynamic buckling phenomenon considering four different failure theories. Convergence and validation studies are carried out using the present mathematical formulation and compared with the results from the existing literatures. The effect of loading duration, loading function, aspect ratio of stiffener and the ply orientation of the skin and stiffener on the non-linear dynamic buckling of LCSC panel is studied in detail and the results are reported. It is observed that the non-linear dynamic buckling load (DBL) of balanced and symmetric angle ply (45°/−45°/−45°/45°) stiffened panel is lower than those of unstiffened composite cylindrical panel upto aspect ratio of the stiffener (ds/bs) equal to 8 when subjected to rectangular pulse load. In case of balanced and symmetric cross ply (0°/90°/90°/0°) stiffened panel the DBL of stiffened panel is lower than those of unstiffened panel when the aspect ratio of the stiffener is less than 4 with rectangular pulse load. Further, the free vibration, static buckling and static post-buckling analyses of the panels are carried out as and when required. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Civil Engineering en_US
dc.subject Impulsive in-plane loads en_US
dc.subject Dynamic buckling en_US
dc.subject Composite laminates en_US
dc.subject Stiffeners en_US
dc.title Non-Linear Stability and Failure of Laminated Composite Stiffened Cylindrical Panels Subjected to In-Plane Impulse Loading en_US
dc.type Article en_US


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