A multi-criteria h-adaptive finite-element framework for industrial part-scale thermal analysis in additive manufacturing processes
View/Open
Cita com:
hdl:2117/377663
Document typeArticle
Defense date2022-12
Rights accessOpen Access
Except where otherwise noted, content on this work
is licensed under a Creative Commons license
:
Attribution 4.0 International
ProjectKYKLOS 4.0 - An Advanced Circular and Agile Manufacturing Ecosystem based on rapid reconfigurable manufacturing process and individualized consumer preferences (EC-H2020-872570)
ANALISIS DE RENDIMIENTO MEJORADO BASADO EN PATRONES DE IMPRESION Y MULTIESCALA DE COMPONENTES DE FABRICACION ADITIVA AVANZADA (AEI-PID2020-115575RB-I00)
ANALISIS DE RENDIMIENTO MEJORADO BASADO EN PATRONES DE IMPRESION Y MULTIESCALA DE COMPONENTES DE FABRICACION ADITIVA AVANZADA (AEI-PID2020-115575RB-I00)
Abstract
This work presents an h-adaptive finite-element (FE) strategy to address the numerical simulation of additive manufacturing (AM) of large-scale parts. The wire-arc additive manufacturing is chosen as the demonstrative technology for its manufacturing capabilities suitable for industrial purposes. The scanning path and processing parameters of the simulation are provided via a RS-274 (GCode) file, being the same as the one delivered to the AM machine. The approach is suitable for industrial applications and can be applied to other AM processes. To identify the location in the FE mesh of the heat affected zone (HAZ), a collision detection algorithm based on the separating axis theorem is used. The mesh is continuously adapted to guarantee the necessary mesh resolution to capture the phenomena inside and outside the HAZ. To do so, a multi-criteria adaptive mesh refinement and coarsening (AMR) strategy is used. The AMR includes a geometrical criterion to guarantee the FE size within the HAZ, and a Zienkiewicz–Zhu-based a-posteriori error estimator to guarantee the solution accuracy elsewhere. Thus, the number of active FEs is controlled and mesh manipulation by the end-user is avoided. Numerical simulations comparing the h-adaptive strategy with the (reference) fixed fine meshes are performed to prove the computational cost efficiency and the solution accuracy.
CitationMoreira, C.A. [et al.]. A multi-criteria h-adaptive finite-element framework for industrial part-scale thermal analysis in additive manufacturing processes. "Engineering with computers", Desembre 2022, vol. 38, núm. 6, p. 4791-4813.
ISSN0177-0667
Publisher versionhttps://link.springer.com/article/10.1007/s00366-022-01655-0
Files | Description | Size | Format | View |
---|---|---|---|---|
33829075.pdf | 8,738Mb | View/Open |