Application of the partial Dirichlet–Neumann contact algorithm to simulate low-velocity impact events on composite structures. (April 2023)

• Record Type: Journal Article
• Authors: Guillamet, G.; Quintanas-Corominas, A.; Rivero, M.; Houzeaux, G.; Vázquez, M.; Turon, A.
• Is Part Of: Composites. Volume 167(2023)
• Publication Date: 2023-04
• Subjects: Contact mechanics -- Damage modeling -- Finite element analysis -- High-performance computing; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2022.107424
• Languages: English
• ISSNs: 1359-835X

Abstract

Abstract: Impact simulations for damage resistance analysis are computationally intensive due to contact algorithms and advanced damage models. Both methods, which are the main ingredients in an impact event, require refined meshes at the contact zone to obtain accurate predictions of the contact force and damage onset and propagation through the material. This work presents the application of the partial Dirichlet–Neumann contact algorithm to simulate low-velocity impact problems on composite structures using High-Performance Computing. This algorithm is devised for parallel finite element codes running on supercomputers, and it is extended to explicit time integration schemes to solve impact problems including damage. The proposed framework is validated with a standard test for damage resistance on fiber-reinforced polymer matrix composites. Moreover, the parallel performance of the proposed algorithm has been evaluated in a mesh of 74M of elements running with 2400 processors. Highlights: The partial Dirichlet-Neumann contact algorithm is used to simulate impact events. The parallel efficiency is maintained above 90% using 74M of cells and 2400 CPUs. A new mesh refinement algorithm is presented to deal with cohesive elements. The proposed numerical framework is devised for High-Performance Computing systems.