Effects of FRP Reinforcements on the Buckling and Reduced Stiffness Criteria of Compressed Steel Cylinders

Yamada, Satoshi; Bhetwal, Krishna Kumar; Yanagida, Masatoshi; Matsumoto, Yukihiro

doi:10.1007/978-3-642-17487-2_204

Cited by 1 publication

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“…In this paper, the major focus has been given to the studies of purely metallic thin-walled steel cylindrical shell that are reinforced by surface coating of CFRP [3]. Attention will be focused on their elastic buckling performance under axial loading and how the imperfection sensitive buckling loads may be safely predicted using the reduced stiffness method [3][4][5].…”

Section: Introduction mentioning

confidence: 99%

Nonlinear Elastic Buckling of CFRP Reinforced Steel Cylinders under Axial Compression

Bhetwal¹,

Yamada²,

Matsumoto³

et al. 2012

JCEA

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In this paper, the strengthening of thin-walled metallic shells with the application of CFRP (carbon fibre reinforced polymer) has been investigated. To lower down the downside of the lower stiffness exhibited by CFRP shells and to diminish the major problem associated with steel shells, a new composite sandwich structure has been introduced in this paper and effect of CFRP reinforcements under axial compression has been studied through three kinds of analytical procedures; the linear Eigen value problem, the modified RS (reduced stiffness) analysis and the fully nonlinear numerical experiment. With these multiple treatments it has been suggested that recently developed modified RS analysis which effectively compute the lower bounds provides the significant information to evaluate the buckling capacity of reinforced shells that display the unstable behaviour and imperfection-sensitivity than the general RS Analysis. This paper also illustrates the application of the methodology to cases of axial loaded shells with the varying thickness of veneers of CFRP.

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Section: Introduction mentioning

confidence: 99%