Effect of damage on the torsional buckling of carbon/epoxy drive shafts with a shell theory

Olivier Montagnier (1, 2) , Christian Hochard (2)

1 CReA - Centre de Recherche de l'École de l'air
2 M&S - Matériaux et Structures

This work is concerned with the effect of the damage on the torsional buckling of CFRP drive shafts. A buckling shell theory is developed to investigate this effect. This one is based on Flügge's shell theory, laminate theory and Flügge's solution for long tubes assumption. In a first step, the effect of damage on buckling torque is simply obtained by decreasing the transverse and shear modulus. Then, an iterative procedure including a damage model is considered to show the evolution of the buckling torque during the increase of static torque. The damage decreases the buckling load of all laminates studied but with various proportions.

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Vibrations [physics.class-ph]

Olivier Montagnier, Christian Hochard. Effect of damage on the torsional buckling of carbon/epoxy drive shafts with a shell theory. Proceedings of the 15th European Conference on Composite Materials, 2012, Venice, Italy. ⟨hal-01315478⟩