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Experimental procedure to characterize the mode I dynamic fracture toughness of advanced epoxy resins

Abstract : This research aimed at developing an experimental procedure to characterize the dynamic fracture toughness of a fast running crack in advanced epoxies enriched with thermoplastic particles and demonstrating quasi-brittle fracture. A strain gauge method was defined to determine the dynamic stress intensity factor K ID for the mode I crack opening with various crack speeds. This strain gauge measurement was associated with high speed cinematography on a three point bending test dedicated to the fracture of notched specimens made of the Hexply®M21 epoxy resin. Results demonstrate that the crack propagation speed has a large influence on the dynamic fracture toughness of advanced epoxy resins
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https://hal-uphf.archives-ouvertes.fr/hal-03663407
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Submitted on : Tuesday, May 10, 2022 - 10:37:15 AM
Last modification on : Tuesday, May 31, 2022 - 12:15:06 PM

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Vincent Joudon, Gérald Portemont, Franck Lauro, Bruno Bennani. Experimental procedure to characterize the mode I dynamic fracture toughness of advanced epoxy resins. Engineering Fracture Mechanics, Elsevier, 2014, 126, pp.166-177. ⟨10.1016/j.engfracmech.2014.05.010⟩. ⟨hal-03663407⟩

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