Constitutive description of yield properties for heterogeneous polymers

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2014

Autores

Mirkhalaf, SM (Autor) Outra; F.M. Andrade Pires (Autor) FEUP; Simoes, R (Autor) Outra

Ata de Conferência Internacional

Título: AES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications

Páginas: 227-235

17th AES-ATEMA International Conference on Advances and Trends in Engineering Materials and Their Applications, ATEMA MONTREAL 2014

16 June 2014 through 20 June 2014

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00G-FCB

Abstract (EN): In this contribution, an approach is proposed to determine the homogenized properties for heterogeneous RVEs at the micro-scale so that the obtained homogenized properties can be used at the macro-scale and consequently, time consuming coupled multi-scale analysis could be avoided. A developed constitutive model, based on single model compressible Leonov model, to account for elasto-viscoplastic behavior of polymers is used. An effort is given to determine the yield properties for heterogeneous polymeric based material. A mathematical relation is proposed which relates the yield stress of the material and different yield properties (Eyring properties for the model used in this study). Then, coupled multi-scale analyses are performed using an arbitrary RVE and the yield stresses are taken form the deformation behavior curves. According to the yield stresses of coupled analyses, the homogenized properties that could be used for the specific RVE are determined. © 2014, Advanced Engineering Solutions (AES.COM) Ottawa, Canada.

Idioma: Inglês

Tipo (Avaliação Docente): Científica