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Proceedings/Recueil Des Communications Lecture Notes in Mechanical Engineering Année : 2023

Implementation Improvement of a Lagrangian Method to Simulate Microstructure Evolution at the Mesoscopic Scale

Elie Delplace
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Sebastian Florez
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Roman Gelly
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  • PersonId : 1327716
Marc Bernacki

Résumé

For decades, numerous numerical methods have been developed to simulate microstructure evolution during hot metal forming. Two main families of methods exist, the front-capturing and the front-tracking ones, with both their strengths and weaknesses. In this work, we will consider a recent front-tracking method, inspired by the Vertex method, called ToRealMotion, developed some years ago. Contrarily to the Vertex method, in ToRealMotion, classical finite element (FE) mesh discretization is considered even in the bulk of grains in order to take into account also intragranular attributes and mechanisms, such as stored energy due to plastic deformation, solid/solid phase transformation, etc...In this work, an improvement of the 2D implementation of this method has been performed and has led to an important reduction in computational times and memory usage with an equivalent accuracy. Most of the optimizations have been performed on the data structure and the computation of the interface interpolation.
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Dates et versions

hal-04353498 , version 1 (19-12-2023)

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Elie Delplace, Sebastian Florez, Roman Gelly, Marc Bernacki. Implementation Improvement of a Lagrangian Method to Simulate Microstructure Evolution at the Mesoscopic Scale. Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity. ICTP 2023, Lecture Notes in Mechanical Engineering, 2023, ⟨10.1007/978-3-031-41341-4_60⟩. ⟨hal-04353498⟩
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