Modeling solid materials in DEM using the micropolar theory
Authors:
- Przemysław Nosal,
- Artur Ganczarski
Abstract
The discrete element method (DEM) is a widely accepted method used in simulations of the powder sintering process, where the real object is replaced by a set of particles representing elastic–plastic material. Recently, this method has also been used to model solid materials. In this work, we present a local constitutive model for the determination of the interaction forces, which is based on micropolar theory. The model shows an elasto-viscoplastic behavior, thus an adaptation of the Johnson–Cook description of flow stress, which allows the analysis of solid materials subjected to high strain rates. The results of the DEM simulations received after calibration of the model parameters agree well with the experimental data from literature.
- Record ID
- CUTa40471692be74f3fa475f1a3baebcb0f
- Publication categories
- ; ;
- Author
- Pages
- 233-248
- Other elements of collation
- il. (w tym kolor.); Bibliografia (na s.) - 247-248; Bibliografia (liczba pozycji) - 29; Oznaczenie streszczenia - Abstr.
- Book
- Altenbach Holm, Holm Altenbach Naumenko Konstantin Konstantin Naumenko (eds.): Creep in Structures VI : IUTAM Symposium Proceedings, Advanced Structured Materials, no. 194, 2023, Cham, Springer, Springer, ISBN 978-3-031-39069-2
- Keywords in English
- Friction Stir Welding, micropolar theory, Discrete Element Method
- ASJC Classification
- Language
- eng (en) English
- Score (nominal)
- 20
- Score source
- publisherList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTa40471692be74f3fa475f1a3baebcb0f/
- URN
urn:pkr-prod:CUTa40471692be74f3fa475f1a3baebcb0f
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