Mechanical signature and full-field measurement of flow-induced large in-plane deformation of fibrous reinforcements in composite processing

Autor: A. Hautefeuille, Christophe Binetruy, Sébastien Comas-Cardona
Přispěvatelé: Institut de Recherche en Génie Civil et Mécanique (GeM), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2019
Předmět:
Zdroj: Composites Part A: Applied Science and Manufacturing
Composites Part A: Applied Science and Manufacturing, Elsevier, 2019, 118, pp.213-222. ⟨10.1016/j.compositesa.2018.12.030⟩
ISSN: 1359-835X
Popis: During compression of saturated fibrous reinforcement, the flow of the liquid can, under certain conditions, generate fiber-tows washout (in-plane movement of fiber-tows) due to the strong hydrodynamically induced force on the fibrous reinforcement. The objective of the study is first to detect experimentally the onset and measure the full-field magnitude of the flow-induced in-plane deformation occurring during the compression. Secondly, a methodology is presented, aiming at defining the mechanical signature of fiber-tow washout on transverse compression tests. For this purpose, a large-scale semi-transparent test bench has been developed in order to dynamically track the in-plane motion of the fiber-tows occurring in saturated compression. Then, a nomogram is given to identify a process window of a saturated fibrous reinforcement processed by consolidation.
Databáze: OpenAIRE