Modeling the inelastic deformation and fracture of polymer composites - Part II: Smeared crack model

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Camanho, PP (Autor) FEUP; Bessa, MA (Autor) Outra; Catalanotti, G (Autor) Outra; Vogler, M (Autor) Outra; Rolfes, R (Autor) Outra

Revista

Título: Mechanics of Materials

Vol. 59

Páginas: 36-49

ISSN: 0167-6636

Editora: Elsevier

Indexação

ISI Web of Knowledge - 84 Citações

Scopus - 107 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: P-005-2B6

DOI: 10.1016/j.mechmat.2012.12.001

Abstract (EN): This paper describes and validates a new fully three-dimensional smeared crack model to predict the onset and propagation of ply failure mechanisms in polymer composites reinforced by unidirectional fibers. The failure criteria are used to predict not only the onset of the failure mechanisms but also the orientation of the fracture plane. This information is used in a smeared crack model for transverse cracking that imposes a linear softening relation between the traction acting on the fracture planes and the crack opening displacements. The longitudinal failure mechanisms are represented using bi-linear softening relations. The model is validated using off-axis compression tests performed in unidirectional specimens as well as using tensile tests in notched multidirectional laminates. A good correlation between experimental observations and numerical predictions is obtained.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14