Plastic strength of thin-walled plated members—Alternative solutions review

• Published in: Thin-walled structures Vol. 49; no. 5; pp. 636 - 644
• Main Authors: KoteŁko, M., Ungureanu, V., Dubina, D., Macdonald, M.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-05-2011
• Subjects: Channels; Compressing; Computer simulation; Energy method; Energy methods; Equilibrium strip method; Load-capacity; Mathematical models; Plastic mechanism; Plated structures; Strength; Thin walled; Load-capacity; Energy method; Equilibrium strip method; Plated structures; Plastic mechanism
• ISSN: 0263-8231; 1879-3223
• DOI: 10.1016/j.tws.2010.09.007

The paper presents results of the comparative theoretical study into plastic strength of thin-walled plated structures (plates and columns) using two different approaches: energy method and equilibrium strip method. Two types of members, a thin plate and a channel section column subjected to compression, were under investigation. Numerical results obtained using both methods, together with FE simulation are presented in load-deformation diagrams. Experimental verification of theoretical analysis (using two methods under investigation together with standards strength predictions) focused on stub columns (lipped channel sections) is presented.