The Natural Neighbour Radial Point Interpolation Method to Predict the Compression and Traction Behavior of Thermoplastics

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2019

Autores

D. E. S. Rodrigues (Autor) Outra; Jorge Belinha (Autor) Outra; Renato Natal Jorge (Autor) FEUP; L. M. J. S. Dinis (Autor) Outra

Ata de Conferência Internacional

Título: MECHANICAL FATIGUE OF METALS: EXPERIMENTAL AND SIMULATION PERSPECTIVES

Páginas: 393-399

19th International Colloquium on Mechanical Fatigue of Metals (ICMFM)

Univ Porto, Fac Engn, Porto, PORTUGAL, SEP 05-07, 2018

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00R-7D4

DOI: 10.1007/978-3-030-13980-3_50

Abstract (EN): Nowadays, the Finite Element Method is the most used discretization technique in structural computational mechanics. However, recently, new discretization techniques-such as meshless methods (Belinha in methods in biomechanics: bone tissue remodelling analysis. Springer International Publishing, Porto, Portugal, 2014 [1])-have been proposed. These numerical techniques are able to efficiently handle some of the FEM's drawbacks, such as the remeshing requirement in crack propagation or large deformations problems. Meshless methods only require an unstructured nodal mesh to discretize the problem domain, and the numerical integration of the discrete system of equations obtained from the Galerkin weak form is performed using a background integration mesh. Additionally, the nodal connectivity is imposed using the influence-domain concept, which allows to construct the interpolation functions. The Natural Neighbor Radial Point Interpolation Method (NNRPIM) is a recently developed truly meshless method, which in this work is used to analyze a thermoplastic assuming an elasto-plastic behavior. Benchmark numerical examples are solved in both traction and compression, and in the end, the NNRPIM results obtained are compared with FEM solutions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7