Laksimi, A. and Elhakimi, A. and Hariri, S. and Azari, Z. (2015) Calculation of defects in pressurised cylindrical shells instrumented by acoustic emission and strain gauges. Materiaux et Techniques, 103 (7).

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This research based on fracture mechanic, associated with numerical computation by finite element method, aims to characterize and to better understand the harmfulness of an existing defect in a structure under pressure. Thus mini-structures have been manufactured, which have defects with different locations and orientations. Instrumentation by strain gauges around the defects was carried out. A grid by sensors of acoustic emission was also used to detect any irreversible deformation in the material (plastic deformation, initiation and evolution of defect). A correlation between numerical calculation and the experimental results is shown. © 2016 EDP Sciences.

Item Type: Article
Uncontrolled Keywords: Acoustic emissions; Cylinders (shapes); Defects; Finite element method; Fracture mechanics; Numerical methods; Shells (structures); Strain gages, Cylindrical shell; Irreversible deformation; Longitudinal defect; Mini-structures; Numerical calculation; Numerical computations, Acoustic emission testing
Subjects: Materials Science
Divisions: SCIENTIFIC PRODUCTION > Materials Science
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:48

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