Numerical investigations on a yarn structure at the microscale towards scale transition. (1st January 2018)

• Record Type: Journal Article
• Authors: del Sorbo, P.; Girardot, J.; Dau, F.; Iordanoff, I.
• Is Part Of: Composite structures. Volume 183(2018)
• Page Start: 489
• Page End: 498
• Publication Date: 2018-01-01
• Subjects: Yarn -- Transversal impact -- Ballistic -- Numerical modelling -- Discrete Element Method -- Microscale; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2017.05.018
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: Since the beginning of the last decade, few examples of multifilament models for dry fabrics have been presented in literature. This work deals with the simulation of a single yarn subjected to transverse impact. Inspired by the models previously developed by other authors, a revisited form of Discrete Element Method has been adopted to perform microscopic analyses in a more efficient computational environment. Transverse impact analysis onto a single KEVLAR KM2 yarn has been performed using this approach. Truss elements have been adopted to discretize yarn filaments instead of heavy computational 3D finite elements. A good agreement with literature results has been achieved with an important reduction of computational resource. In the end, a proposed scale transition is discussed.