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A scalable parallel finite element framework for growing geometries: application to metal additive manufacturing
info:eu-repo/semantics/openAccess ;ISSN: 0029-5981 ;EISSN: 1097-0207 ;DOI: 10.1002/nme.6085
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Title:
A scalable parallel finite element framework for growing geometries: application to metal additive manufacturing
Author:
Miranda Neiva, Eric
;
Badia, Santiago
;
Martín Huertas, Alberto Francisco
;
Chiumenti, Michèle
Subjects:
Adaptive mesh refinement
;
Additive manufacturing
;
Anàlisi numèrica
;
Domain decomposition
;
Enginyeria dels materials
;
Fabricació
;
Finite elements
;
Manufacturing processes
;
Matemàtiques i estadística
;
Mathematical models
;
Metal·lúrgia
;
Models matemàtics
;
Mètodes en elements finits
;
Parallel computing
;
Powder-bed fusion
;
Àrees temàtiques de la UPC
Description:
This is the accepted version of the following article: [ Neiva, E, Badia, S, MartÃn, A F, Chiumenti, M. A scalable parallel finite element framework for growing geometries. Application to metal additive manufacturing. Int J Numer Methods Eng. 2019. https://doi.org/10.1002/nme.6085], which has been published in final form at https://onlinelibrary.wiley.com/doi/abs/10.1002/nme.6085 This work introduces an innovative parallel, fully-distributed finite element framework for growing geometries and its application to metal additive manufacturing. It is well-known that virtual part design and qualification in additive manufacturing requires highly-accurate multiscale and multiphysics analyses. Only high performance computing tools are able to handle such complexity in time frames compatible with time-to-market. However, efficiency, without loss of accuracy, has rarely held the centre stage in the numerical community. Here, in contrast, the framework is designed to adequately exploit the resources of high-end distributed-memory machines. It is grounded on three building blocks: (1) Hierarchical adaptive mesh refinement with octree-based meshes; (2) a parallel strategy to model the growth of the geometry; (3) state-of-the-art parallel iterative linear solvers. Computational experiments consider the heat transfer analysis at the part scale of the printing process by powder-bed technologies. After verification against a 3D benchmark, a strong-scaling analysis assesses performance and identifies major sources of parallel overhead. A third numerical example examines the efficiency and robustness of (2) in a curved 3D shape. Unprecedented parallelism and scalability were achieved in this work. Hence, this framework contributes to take on higher complexity and/or accuracy, not only of part-scale simulations of metal or polymer additive manufacturing, but also in welding, sedimentation, atherosclerosis, or any other physical problem where the physical domain of interest grows in time. Peer Reviewed
Publisher:
John Wiley & sons
Creation Date:
2019-09
Language:
English
Identifier:
ISSN: 0029-5981
EISSN: 1097-0207
DOI: 10.1002/nme.6085
Source:
Recercat
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