Experimental Investigations on Stiffened and Web-core Sandwich Panels Made for Steel under Quasi-Static Penetration

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A4 Artikkeli konferenssijulkaisussa

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en

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8

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4TH INTERNATIONAL CONFERENCE ON STRUCTURAL INTEGRITY (ICSI 2021), Volume 37, issue C, pp. 17-24, Procedia Structural Integrity ; Volume 37

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Structural integrity analysis of ships in collisions and groundings requires a realistic idealization of environmental and operational conditions within computational models. In essence, the problems are solved as Fluid-Structure-Interaction problems in which structural mechanics has an important role by modeling the contact. The accuracy of structural predictions in as-built and as-operated structures can only be improved by properly understanding the phenomena present in full- and laboratory-scale. This paper investigates experimentally the modeling uncertainties with quasi-static experiments on single-sided stiffened and double-skinned steel sandwich panels. Results reveal the importance of uncertainties associated with the panels' boundary conditions on how they affect the roles of membrane and bending load-carrying mechanisms and loading, material, and structural gradients that affect the initiation of the final fracture.

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Romanoff, J, Korgesaar, M, Lehto, P, Berntsson, K & Remes, H 2022, Experimental Investigations on Stiffened and Web-core Sandwich Panels Made for Steel under Quasi-Static Penetration. in P Moreira & P Tavares (eds), 4TH INTERNATIONAL CONFERENCE ON STRUCTURAL INTEGRITY (ICSI 2021). C edn, vol. 37, Procedia Structural Integrity, vol. 37, Elsevier, pp. 17-24, International Conference on Structural Integrity, Virtual, Online, 30/08/2021. https://doi.org/10.1016/j.prostr.2022.01.055