Flexural behaviour of concrete-filled steel tubes

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Analytical modeling of bending of circular concrete-filled steel tubes (2012, background): “prior studies that have aimed at developing practical models have used fiber-based and macro-models to simulate CFT beam, column, and beam-column [13-15].”
Behaviour of concrete-filled double skin rectangular steel tubular beam–columns (2006, neutral): “01 is defined as the ultimate bending moment capacity (Mu) of the composite beam [17].”
Performance of concrete filled stainless steel tubular (CFSST) columns and joints: Summary of recent research (2019, background): “Similar to concrete-filled carbon steel tubes [61], the measured bending moment versus mid-span deflection curves for CFSST beams could be divided into three stages, i.”
Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members (2014, background): “For a concrete-filled steel tube in bending, the existing of the inner concrete can change the failure modes of the outer tubes [39,40], with the wavelike buckling exhibited in the compressive area of the member.”