Torsional behaviour of rectangular hollow sections

Ridley-Ellis, Daniel; Owen, J.S.; Davies, G.

doi:10.1016/s0143-974x(02)00060-3

Cited by 11 publications

(9 citation statements)

References 5 publications

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“…Despite the poor agreement with the theory, the two tests of unperforated grade S355 RHS 200x100x8 gave similar results indicating good experimental repeatability (less than 1% difference in capacity). The possible causes of the anomalous torsional behaviour of the full-scale unperforated specimens, which is also evident in the work of Marshall (1972), is discussed further elsewhere (Ridley-Ellis et al 2002& 2003.…”

Section: Measurements Of Torque-twist Relationshipsmentioning

confidence: 71%

“…The grade S275J2H material was manufactured by British Steel (now Corus) and the grade S355J2H material was manufactured by Vallourec and Mannesmann Tubes. Further details of the testing apparatus and procedure are given elsewhere (Ridley-Ellis et al 2002& 2003.…”

Section: Full-scale Testsmentioning

confidence: 99%

“…The torque rotation curves for the laboratory torsion tests are shown in Figures 4,5 and 6. The torque and rotation have been normalised against the theoretical elastic torque (T el ) and rotation (θ el ) of the corresponding unperforated section as calculated by simplified thick-wall theory (see Ridley-Ellis et al 2002 and2003).…”

Section: Measurements Of Torque-twist Relationshipsmentioning

confidence: 99%

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Torsion tests on small and large-scale RHS with circular wall cut-outs

Ridley-Ellis¹,

Owen²,

Davies³

2017

Tubular Structures X

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The results of small and large-scale torsion tests on rectangular section tubes with circular wall perforations are presented and discussed. Perforations are shown to cause the torsional resistance to be reduced by up to 60% and stiffness to be reduced by up to 40%. The perforated zone is shown to be much more flexible than the unperforated section, which results in severe deformations in this region. Small holes cause small reductions in the torsional resistance and stiffness, but in some instances result in a large reduction in the torsional ductility of the member. The experimental results are favourably compared to the predictions of finite element models, which are then used to demonstrate the importance of the boundary conditions for the asymmetrical cases, and to study in more detail the stress distributions around the openings.

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Section: Measurements Of Torque-twist Relationshipsmentioning

confidence: 71%

Section: Full-scale Testsmentioning

confidence: 99%

Section: Measurements Of Torque-twist Relationshipsmentioning

confidence: 99%

See 1 more Smart Citation

Torsion tests on small and large-scale RHS with circular wall cut-outs

Ridley-Ellis¹,

Owen²,

Davies³

2017

Tubular Structures X

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“…Experience and design solutions described in some previous published works [9][10][11] have been carefully considered. A specific test machine to make torsional tests on various thin walled box beams has been designed and built at the Reliability and Safety Laboratory of the II Faculty of Engineering of the Politecnico di Torino.…”

Section: Test Machinementioning

confidence: 99%

Experimental evaluation of the torsional behaviour of thin walled beams: elastic and buckling situations

Belingardi

Peroni

Scattina

2008

WIT Transactions on the Built Environment

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In the automotive engineering field, as well as in other structural applications, thin walled box beams are widely used. In car body construction this type of beam is fundamental, as it constitutes the base element of the frame structure. The torsional stiffness is one of the main characteristics for a car body and is one of the main targets in the design of a new car. A good result in the body torsional stiffness can be achieved by an appropriate layout of the beams that constitute the frame, an appropriate design of the beam section, and an appropriate design of the joints that connect each other with the beams to build the frame. The aim of the present paper is the analysis and comparison of the structural response of box-beams, typical elements of frame, submitted to torsion loads. Different cross-section shapes made by means of various types of joining technique are considered. A torsion test machine has been designed and built, capable of testing different types of thin walled beam specimens. This test machine has different structural characterisation purposes: torsion stiffness, buckling and plastic post-buckling behaviour, static strength, and fatigue strength. The characteristics obtained by the adoption of a different joining technique can also be evaluated. The main constructive solutions adopted for the new test machine are reported in this work. Experimental results obtained from a first series of tests carried out on simple thin walled box beams with two different cross sections, some of them obtained by using adhesive joints, are presented.

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“…13 Control beams painted with a lime wash The shear slip lines (also known as Lüder's lines) can be observed in the maximum shear stress direction. Because steel is homogeneous, the information obtained from the brittle coating can help to interpret the data from the strain gauges(Ridley-Ellis et al, 2003). Lüder's lines and yield lines can be seen inFigure 3.14.…”

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confidence: 99%