Mechanical behaviour and damage mechanisms analysis of a flax-fibre reinforced composite by acoustic emission
Article dans une revue avec comité de lecture
Auteur
Date
2016Journal
Composites Part A: Applied Science and ManufacturingRésumé
This article presents the mechanical characterization of an eco composite consisting of a thermoplastic matrix reinforced by flax fibres. Different configurations of specimens were tested with uniaxial tensile loading and their mechanical behaviours were discussed. Moreover, the acoustic emission technique was used to detect the appearance of damage mechanisms and to follow their evolution. In addition, a list of these mechanisms was established by means of macroscopic and microscopic observations. The acoustic emission records were post processed by the k-means unsupervised pattern recognition algorithm. Depending on the specimen configuration, three or four classes of events were obtained. The acoustic characteristics of these classes were compared. Then, a correlation between these AE events classes and the damage mechanisms observed was proposed. Their effects on the mechanical behaviour of the material were investigated by means of a variable called the Sentry Function.
Fichier(s) constituant cette publication
- Nom:
- LAMPA_CPAASM_2016_GUILLAUMAT.pdf
- Taille:
- 2.830Mo
- Format:
- Description:
- Article principal
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureThis paper presents the results of several experimental analyses performed on a biobased sandwich structure. The material studied is made up of thermoplastic skins reinforced by flax fibres and applied to a balsa core. It ...
-
Article dans une revue avec comité de lectureThis paper presents the results of experimental and numerical analyses of the flexural vibration behaviour of bio-based sandwich structures and their composite faces, and particularly their damping properties. The material ...
-
Communication avec acteDERBALI, Imed; MONTI, Arthur; EL MAHI, Abderrahim; JENDLI, Zouhaier; GUILLAUMAT, Laurent; TEREKHINA, Svetlana (EDP Sciences, 2018)One of the major challenges of thermoplastic matrix based composites is to manufacture finished parts both in one shot process and in a reduced time production. For this purpose, two techniques were developed to manufacture ...
-
Article dans une revue avec comité de lectureBALLERE, Ludovic; LATAILLADE, Jean-Luc; CLOUTET, S; GUILLAUMAT, Laurent; VIOT, Philippe (Elsevier, 2008)The final aim of this study is to evaluate the influence of impact damage on the residual strength of carbon/epoxy vessels stressed by internal pressure. An intermediate stage determined the residual behaviour of pre-impacted ...
-
Article dans une revue avec comité de lectureThis paper deals with a reliability approach applied on composite plates which should be used in railway structures under low velocity impact loading.Impacted composite plates in bending configuration are considered as an ...