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Endommagement du bois lamellé-collé soumis à un chargement de torsion cyclique

Nafa, Zahreddine / Chaplain, Myriam

The aim of this paper is to study the behaviour and the lifetime of glued-laminated small scale beams (GL) submitted to cyclic torsion. Experimental programmes have been carried out: periodic triangular alternate torques with varying amplitude are applied to GL samples with rectangular cross section. Experimental lifetime is presented by semi logarithmic SL-N curves (SL is the maximum torque stress level and N is the number of cycles to failure). From angular distortion records, we propose a method to obtain the damage evolution versus time. The prediction of load duration of GL specimens under cyclic torque is approached by a damage theory.

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Endommagement du bois lamellé-collé soumis à un chargement de torsion cyclique

Nafa, Zahreddine / Chaplain, Myriam

The aim of this paper is to study the behaviour and the lifetime of glued-laminated small scale beams (GL) submitted to cyclic torsion. Experimental programmes have been carried out: periodic triangular alternate torques with varying amplitude are applied to GL samples with rectangular cross section. Experimental lifetime is presented by semi logarithmic SL-N curves (SL is the maximum torque stress level and N is the number of cycles to failure). From angular distortion records, we propose a method to obtain the damage evolution versus time. The prediction of load duration of GL specimens under cyclic torque is approached by a damage theory.

Endommagement du bois lamellé-collé soumis à un chargement de torsion cyclique

Nafa, Zahreddine / Chaplain, Myriam

The aim of this paper is to study the behaviour and the lifetime of glued-laminated small scale beams (GL) submitted to cyclic torsion. Experimental programmes have been carried out: periodic triangular alternate torques with varying amplitude are applied to GL samples with rectangular cross section. Experimental lifetime is presented by semi logarithmic SL-N curves (SL is the maximum torque stress level and N is the number of cycles to failure). From angular distortion records, we propose a method to obtain the damage evolution versus time. The prediction of load duration of GL specimens under cyclic torque is approached by a damage theory.

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Title:

Endommagement du bois lamellé-collé soumis à un chargement de torsion cyclique

Contributors:

Nafa, Zahreddine (author) / Chaplain, Myriam (author)

Published in:

European Journal of Environmental and Civil Engineering ; 12 ; 1123-1135

Publication date:

2008-11-01

Size:

13 pages

ISSN:

1964-8189 , 2116-7214

DOI:

https://doi.org/10.1080/19648189.2008.9693070

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

glued-laminated wood , cyclic torsion , modelling , damage , bois lamellé-collé , torsion cyclique , modélisation , endommagement

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