Concept of stress dead zone in cracked plates: Theoretical, experimental, and computational studies

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Farahani, BV (Autor) Outra; Eslami, S (Autor) Outra; de Melo, FQ (Autor) Outra; Tavares, PJ (Autor) Outra; Moreira, PMGP (Autor) Outra

Revista

Título: Fatigue and Fracture of Engineering Materials and Structures

Vol. 42

Páginas: 2457-2467

ISSN: 8756-758X

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 8 Citações

Outras Informações

ID Authenticus: P-00Q-8EZ

DOI: 10.1111/ffe.12988

Abstract (EN): This paper presents a study on stress dead zone implications and its characterization with uniaxial tensile testing on MT polycarbonate plate specimens. To obtain the experimental solution, digital image correlation (DIC) is used. Numerically, based on LEFM, the problem is solved using advanced discretization techniques, finite element, and meshless methods. Considering stress dead zone notion, it aims to determine alternative analytical solution of the SIF. Thus, the compliance method is adopted, which is associated with the specimen's dead zone region that does not involve the cracking resistance. Hence, LEFM formulations complying with strain energy release rate criterion are assumed. A proper comparison is made amongst results obtained from all theoretical, experimental, and numerical analyses. Furthermore, this work focuses on the variational fields' evaluation and, in particular, verification on the theoretical assumption of dead zone characteristics. The obtained results support adopted methodologies and are encouragingly robust and cost-effective.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11