Strengthening metallic shells with FRP against buckling

Mustafa Batikha, J. F. Chen, J. M. Rotter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Thin metallic shell structures such as silos and tanks are susceptible to bucklingfailure which is usually very sensitive to local imperfections. The strengthening of such thinshells has previously been rather difficult if not impossible. Welding additional metal plates tothe existing structure is not easy, and can be prohibitive for health and safety reasons if thestructure contains materials like harmful chemicals, flammables, explosive liquids or gases.Welding also introduces imperfections and residual stresses which may reduce the bucklingstrength of the structure. The authors have recently proposed to strengthen such structures usingexternally bonded FRP. This paper presents a numerical study of the buckling behaviour of cylindricalmetal shells with a dent and strengthened with FRP. The results show that the schemeis very effective and economical.
Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on FRP composites in civil engineering
EditorsMasoud Motavalli
PublisherInternational Institute for FRP in Construction
Number of pages6
ISBN (Electronic)978-3-905594-50-8
Publication statusPublished - 22 Jul 2008

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Buckling
Welding
Defects
Plate metal
Residual stresses
Health
Liquids
Gases

Cite this

Batikha, M., Chen, J. F., & Rotter, J. M. (2008). Strengthening metallic shells with FRP against buckling. In M. Motavalli (Ed.), Proceedings of the 4th International Conference on FRP composites in civil engineering [5.C.4] International Institute for FRP in Construction.
Batikha, Mustafa ; Chen, J. F. ; Rotter, J. M. / Strengthening metallic shells with FRP against buckling. Proceedings of the 4th International Conference on FRP composites in civil engineering. editor / Masoud Motavalli. International Institute for FRP in Construction, 2008.
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Batikha, M, Chen, JF & Rotter, JM 2008, Strengthening metallic shells with FRP against buckling. in M Motavalli (ed.), Proceedings of the 4th International Conference on FRP composites in civil engineering., 5.C.4, International Institute for FRP in Construction.

Strengthening metallic shells with FRP against buckling. / Batikha, Mustafa; Chen, J. F.; Rotter, J. M.

Proceedings of the 4th International Conference on FRP composites in civil engineering. ed. / Masoud Motavalli. International Institute for FRP in Construction, 2008. 5.C.4.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Thin metallic shell structures such as silos and tanks are susceptible to bucklingfailure which is usually very sensitive to local imperfections. The strengthening of such thinshells has previously been rather difficult if not impossible. Welding additional metal plates tothe existing structure is not easy, and can be prohibitive for health and safety reasons if thestructure contains materials like harmful chemicals, flammables, explosive liquids or gases.Welding also introduces imperfections and residual stresses which may reduce the bucklingstrength of the structure. The authors have recently proposed to strengthen such structures usingexternally bonded FRP. This paper presents a numerical study of the buckling behaviour of cylindricalmetal shells with a dent and strengthened with FRP. The results show that the schemeis very effective and economical.

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Batikha M, Chen JF, Rotter JM. Strengthening metallic shells with FRP against buckling. In Motavalli M, editor, Proceedings of the 4th International Conference on FRP composites in civil engineering. International Institute for FRP in Construction. 2008. 5.C.4