DEL SORBO, Pietro; GIRARDOT, Jeremie; DAU, Frederic; IORDANOFF, Ivan

doi:10.1016/j.compstruct.2017.05.018

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DEL SORBO, Pietro

GIRARDOT, Jeremie

Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

DAU, Frederic

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Composite Structures. 2018-01, vol. 183, p. 489-498

Elsevier

Résumé en anglais

Since the beginning of the last decade, few examples of multifilament models for dry fabrics have beenpresented in literature. This work deals with the simulation of a single yarn subjected to transverseimpact. Inspired by the models previously developed by other authors, a revisited form of DiscreteElement Method has been adopted to perform microscopic analyses in a more efficient computationalenvironment. Transverse impact analysis onto a single KEVLAR KM2 yarn has been performed using thisapproach. Truss elements have been adopted to discretize yarn filaments instead of heavy computational3D finite elements. A good agreement with literature results has been achieved with an important reductionof computational resource. In the end, a proposed scale transition is discussed.< Réduire

Mots clés en anglais

Yarn

Transversal impact

Ballistic

Numerical modelling

Discrete Element Method

Microscale

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Numerical investigations on a yarn structure at the microscale towards scale transition

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