INFLUENCE OF LIPS ON THIN-WALLED SECTIONS

Citation
Lk. Seah et al., INFLUENCE OF LIPS ON THIN-WALLED SECTIONS, Thin-walled structures, 16(1-4), 1993, pp. 145-177
Citations number
9
Categorie Soggetti
Engineering, Civil
Journal title
ISSN journal
02638231
Volume
16
Issue
1-4
Year of publication
1993
Pages
145 - 177
Database
ISI
SICI code
0263-8231(1993)16:1-4<145:IOLOTS>2.0.ZU;2-7
Abstract
Turning the free edge of an unstiffened flange inwards or outwards to form a 'lip', can substantially improve the local buckling resistance of a member. The lip is the most common type of edge stiffener used in cold-rolled, thin-walled sections. In this paper the behaviour of pla te elements of thin-walled sections stiffened by compound lips (i.e. l ips which are folded twice to form 'lips on the lips) is examined both theoretically and experimentally. An outline of a series of tests on compound edge-stiffened thin-walled sections of various geometries is given and some load-end compression displacement paths are compared wi th the theoretical predictions. Reasonably good agreement is obtained between the experimental and theoretical results. Comparisons of the t heoretical predictions with experimental results of other researchers are also presented in this paper.