0000000001205610
AUTHOR
Abel Cherouat
Effect of residual stresses on torque behaviors of composite laminate
International audience
Determination of the residual stresses in composite laminate using the compliance method
Residual stresses play an important role on the mechanical behavior of composite laminate. The development of new methods to determine the residual stresses gradient within the laminates is necessary. This article presents the adaptation of the compliance method in the case of composite laminates carbon/epoxy [02/902]s. The incremental drilling of a constant width groove allows for each increment to measure the strains (using strain gages) and displacements (using an optical device) of particularly points of the structure surface. These experimental data are compared with results given by a finite elements simulation. This comparison allows to raise the residual stresses in the composite la…
Dependence between aging treatments and residual stresses on composite laminate
International audience; The objective of this paper is to study the influence of residual stresses due to fabrication conditions on the thermomechanical behavior of carbon/epoxy laminate structures (cross ply). These studied laminates have undergone various cycles of thermal aging. The addition of a post-cure cycle after the end of the initial cycle makes it possible to reduce the residual stresses level. The incremental hole-drilling method is used to measure the residual strain in the laminates. These measured strains and the numerical calibration coefficients obtained by the finite element method allow to calculating the residual stress distribution in composite depth. The obtained resul…
Optimisation de la méthode du trou incrémental pour la mesure des contraintes résiduelles dans les matériaux composites stratifiés
International audience
Studies of residual stresses in composite laminates by the finite element method
International audience
Approche des contraintes résiduelles dans les composites stratifiés par la méthode de la compliance
International audience
Importance des contraintes résiduelles sur le comportement mécanique d'un composite stratifié
International audience
Aging effect on residual stresses field in composite laminate
International audience
Determination of residual stresses in the case of composite laminate
International audience
Influence des paramètres expérimentaux sur la détermination des contraintes résiduelles par la méthode du trou incrémental
International audience
Application de la méthode de la flèche à la détermination des contraintes résiduelles dans les composites stratifiés
International audience
Nouvelle méthode de mesure des contraintes résiduelles dans les matériaux composites stratifiés
International audience
Influence of the residual stress on the mechanical behaviour of composite laminates during monotonous tensile and torque loading
International audience
Importance des contraintes résiduelles sur le comportement mécanique d’un composite stratifié
International audience