Result: Analyse de la zone d'endommagement et de la fissuration fragile sous chargement cyclique dans les tubes de gaz en polyéthylène / Damage zone analysis and brittle cracking under cyclic loading in polyethylene gas pipes

Title:
Analyse de la zone d'endommagement et de la fissuration fragile sous chargement cyclique dans les tubes de gaz en polyéthylène / Damage zone analysis and brittle cracking under cyclic loading in polyethylene gas pipes
Authors:
KHELIF, Rabia, ZEGHIB, Nassereddine, CHATEAUNEUF, Alaa, CHAOUI, Kamel
Source:
18e Congrès français de mécanique (CFM2007), Grenoble, 27-31 août 2007Mécanique & industries. 8(3):217-223
Publisher Information:
Paris: Elsevier, 2007.
Publication Year:
2007
Physical Description:
print, 16 ref
Original Material:
INIST-CNRS
Subject Terms:
Mechanical engineering, Génie mécanique, Mechanics acoustics, Mécanique et acoustique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Mécanique des solides, Solid mechanics, Mécanique des structures et des milieux continus, Structural and continuum mechanics, Elasticité statique (thermoélasticité...), Static elasticity (thermoelasticity...), Mécanique de la rupture (fissure, fatigue, endommagement...), Fracture mechanics (crack, fatigue, damage...), Sciences appliquees, Applied sciences, Industrie des polymeres, peintures, bois, Polymer industry, paints, wood, Technologie des polymères, Technology of polymers, Formes d'application et semiproduits, Forms of application and semi-finished materials, Tubes, Analyse statistique, Statistical analysis, Análisis estadístico, Approche probabiliste, Probabilistic approach, Enfoque probabilista, Canalisation eau, Water pipe, Conducto agua, Charge constante, Constant load, Carga constante, Charge cyclique, Cyclic load, Carga cíclica, Concentration contrainte, Stress concentration, Concentración restringida, Corrélation, Correlation, Correlación, Coût, Costs, Coste, Endommagement, Damaging, Deterioración, Ethylène polymère, Polyethylene, Etileno polímero, Fissuration, Cracking, Agrietamiento, Fissure fatigue, Fatigue crack, Fisura fatiga, Grande déformation, High strain, Gran deformación, Matériau ductile, Ductile material, Material dúctil, Propagation fissure, Crack propagation, Propagación fisura, Propriété mécanique, Mechanical properties, Propiedad mecánica, Restitution énergie, Energy release, Restitución energía, Rupture fragile, Brittle fracture, Ruptura frágil, Tube plastique, Plastic tube, Tubo plástico, Tuyauterie gaz, Gas piping, Cañería gas, Polyethylene pipe, brittle to ductile transition, fatigue crack
Document Type:
Conference Conference Paper
File Description:
text
Language:
French
Author Affiliations:
LaMI -UBP & IFMA, Campus de Clermont-Ferrand, BP 265, 63175 Aubière, France
LR3MI, Département de Mécanique, Faculté des Sciences de l'Ingénieur, Université Badji Mokhtar, BP 12, Annaba 23000, Algeria
LGC -UBP, Complexe Universitaire des Cézeaux, BP 206, 63174 Aubière, France
ISSN:
1296-2139
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=19011308
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: solid mechanics

Polymer industry, paints, wood
Accession Number:
edscal.19011308
Database:
PASCAL Archive

Further Information

Plastic pipes used for water and gas transmission continue to be the subject of many studies that treat various aspects of material's behaviour. Recent statistics indicate that more than 90 % of gas distribution systems lately installed in the whole world are made exclusively of polyethylene (PE) because of its ease of installation and relatively low costs. Constant load tests show two general mechanisms of crack propagation: a ductile rupture, which is dominated by homogeneous deformations on a large scale in the volume and a brittle fracture that starts at stress concentration points. This work aims at studying the brittle-to-ductile transition from fatigue in polyethylene tubes and the characterization of the associated damage zone. The suggested method is based on the measurements of two fatigue parameters: the crack growth rate, obtained at various load levels and the irreversible work spent on damage and crack growth, which is calculated using instantaneous hysterisis loops. The obtained correlations, for maximum fatigue loads between 20% and 35% of the yield stress, give average critical energy release rates of 211 J.m-2 and 695 J.m-2 respectively for brittle and ductile regimes.