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Local approach of fracture on semi-crystalline polymers : contribution of X-ray laminography technique

Abstract : Damage mechanisms in a PolyAmide 6 semi-crystalline polymer were characterized by using Synchrotron Radiation Laminography technique on CT like specimen. Damage appeared as multiple penny shaped crazes. The maximum damage occurred at mid-thickness and located at a small distance from the notch root. An attempt was made to apply local approach of fracture concept thanks to finite element analysis using damage-based constitutive model. FE simulation successfully captured the aforementioned micro-mechanisms of crack initiation, by void coalescence. Further work is carried out to determine the crack dimension corresponding to the maximum net stress: the criterion being used for the global approach of fracture.
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Submitted on : Thursday, November 14, 2013 - 4:05:51 PM
Last modification on : Thursday, September 24, 2020 - 6:30:07 PM
Long-term archiving on: : Saturday, February 15, 2014 - 4:28:59 AM

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  • HAL Id : hal-00853439, version 1

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Lucien Laiarinandrasana, Thilo F. Morgeneyer, Henry Proudhon, Lukas Helfen, Jacques Besson. Local approach of fracture on semi-crystalline polymers : contribution of X-ray laminography technique. 13th international conference on fracture, Jun 2013, Beijing, China. 11 p. ⟨hal-00853439⟩

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