• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)
  • View Item
  • Home
  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Rapid crack propagation in PA11: An application to pipe structure

Article dans une revue avec comité de lecture
Author
FOND, Christophe
217648 Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie [ICube]
HOCHSTETTER, Gilles
486315 Arkema [Arkema]
ccKOPP, Jean-Benoit

URI
http://hdl.handle.net/10985/17335
DOI
10.1016/j.engfracmech.2018.08.025
Date
2018
Journal
Engineering Fracture Mechanics

Abstract

Dynamic fracture mechanism in Polyamide 11 (PA11) material has been described at laboratory scale to access to an intrinsic material parameter. A liquid transportation application is considered with polymer pipes. A preliminary numerical analysis of the rapid crack propagation (RCP) in polymer pipe is firstly realised. Two boundary conditions, imposed displacement or pressure, are numerically investigated. The work of external forces is not negligible for pressurized polymer pipe. A reliable estimate of the dynamic energy release rate GId is in this last case not guaranteed. To limit unwanted structural effects a specific experimental device has been used to ensure a permanent regime of RCP in Pre-Stressed Pipe Specimen (PS2). Experimental dynamic fracture tests are realised with Polyamide 11 PS2. Dynamic instabilities inducing “ring-off” and “snake” mechanisms which could appear during full-scale test are not observed with this new test. A finite element procedure is used to estimate the material toughness GID of PA11. Knowing the crack tip location during RCP inertia effects (i.e. kinetic energy) are quantified. The mean crack tip velocity is observed not to change in PA11 whatever the crack configuration (branching or not). This velocity is known to be the crack branching velocity (≈0.6cR). The average dynamic energy release rate ⟨GID⟩ is equal to 1.5± 0.1 kJm−2 at the crack branching velocity. The nontrivial fracture surface roughness is observed with a scanning electron microscope.

Files in this item

Name:
I2M_EFM_2018_KOPP.pdf
Size:
2.145Mb
Format:
PDF
View/Open

Collections

  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

Related items

Showing items related by title, author, creator and subject.

  • A self-affine geometrical model of dynamic RT-PMMA fractures: implications for fracture energy measurements 
    Article dans une revue avec comité de lecture
    SCHMITTBUHL, Jean; NOEL, Olivier; FOND, Christophe; ccKOPP, Jean-Benoit (Springer Verlag, 2015)
    Profilometric imaging of fracture surfaces of rubber toughened polymer has been performed at two different resolutions (a) at large scales [10 μ\upmu m–25 mm] using an opto-mechanical profilometer and (b) at small scales ...
  • Experimental Investigation and Discrete Element Modelling of Composite Hollow Spheres Subjected to Dynamic Fracture 
    Article dans une revue avec comité de lecture
    CORE, Arthur; CHARLES, Jean-Luc; ccVIOT, Philippe; ccDAU, Frédéric; ccKOPP, Jean-Benoit (Hindawi Publishing Corporation, 2017)
    This paper deals with the characterization and the numerical modelling of the collapse of composite hollow spherical structures developed to absorb energy during high velocity impacts. The structure is composed of hollow ...
  • Reevaluation of the diametral compression test for tablets using the flattened disc geometry 
    Article dans une revue avec comité de lecture
    MAZEL, Vincent; ccGUÉRARD, Sandra; CROQUELOIS, Benjamin; ccKOPP, Jean-Benoit; ccGIRARDOT, Jeremie; DIARRA, Harona; BUSIGNIES, Virginie; TCHORELOFF, Pierre (Elsevier, 2016)
    Mechanical strength is an important critical quality attribute for tablets. It is classically measured, in the pharmaceutical field, using the diametral compression test. Nevertheless, due to small contact area between the ...
  • A damaging beam-lattice model for quasi-brittle fracture 
    Article dans une revue avec comité de lecture
    SAGE, Margaux; ccGIRARDOT, Jeremie; ccKOPP, Jean-Benoit; MOREL, Stéphane (Elsevier BV, 2022)
    This work aims to propose a new damaging beam-lattice model using the Discrete Element Method paradigm dedicated to the simulation of quasi-brittle fracture under complex loadings. Enrichment of the elastic Euler–Bernoulli ...
  • Energy Absorption Capacity of Agglomerated Cork Under Severe Loading Conditions 
    Article dans une revue avec comité de lecture
    ccLE BARBENCHON, Louise; ccVIOT, Philippe; ccGIRARDOT, Jeremie; ccKOPP, Jean-Benoit (Springer, 2021)
    Understanding the mechanical behavior of materials in working conditions is a current problem in transport industries. In this article, we demonstrate why the temperature and the strain-rate are first-order parameters when ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales