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Experimental and numerical study of local stability of non-standard thin-walled channel beams

100%

Grenda M. , Paczos P.

Journal of Theoretical and Applied Mechanics

2019

tom Vol. 57 nr 3

549--562

The subject of the paper are cold-formed, thin-walled non-standard channel beams with stiffened webs. The local elastic buckling and limit load of the beams subjected topure bending are investigated. This study includes numerical, based on the Finite Element Method and the Finite Strip Method, calculations and actual tests of beams in the laboratory. The presented results give a deep insight into behaviour of such beams and may be used to validate analytical models.

Large bending deformations of pressurized curved tubes

88%

Kolesnikov A. M.

Archives of Mechanics

2011

tom Vol. 63, nr 5-6

507-507

In this paper, the problem of large pure bending deformations of membrane is considered. The membrane is a sector of torus with a closed cross-section. This membrane is called a curved tube for short. We consider the homogenous, incompressible, isotropic and hyperelastic material. The external load is a constant pressure and bending couples acting at the edges. The equilibrium equations reduce to ordinary differential equations. As an example, the membrane with a constant thickness and with a circular cross-section is investigated.