On the representativeness of polycrystalline models with transformation induced plasticity

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

da Silva, JAM (Autor) Outra; de Carvalho, MV (Autor) Outra; Coelho, RPC (Autor) Outra; Lopes, IAR (Autor) FEUP; F.M. Andrade Pires (Autor) FEUP

Revista

Título: Finite Elements in Analysis and Design

Vol. 215

ISSN: 0168-874X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus

Outras Informações

ID Authenticus: P-00X-JMS

DOI: 10.1016/j.finel.2022.103875

Abstract (EN): The convergence behaviour of representative volume elements (RVEs) with an increasing number of crystalline grains, which can undergo crystallographic slip and mechanically induced martensitic formation, is analysed in the present contribution. Instead of analysing a single micromechanical model subjected to relevant loading scenarios, the representativeness of the RVEs is assessed by running distinct macroscopic simulations that promote different deformation modes with several random realisations of the polycrystalline microstructure. To avoid the computational cost of FE2 approaches and make this convergence analysis feasible, a computationally efficient Taylor's condition (FE-T) is assumed. Then, an FE2 simulation is performed with periodic boundary conditions for a converged RVE size to illustrate the impact of Taylor's assumption on the macroscopic response. The introduction of martensitic transformation slightly increases the dispersion of the results. Nevertheless, the macroscopic response converges whether this phenomenon is considered or not.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14