Efficient crack analysis of dynamically loaded structures using a modal superposition of stress intensity factors

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Albuquerque, C (Autor) Outra; de Castro, PMST (Autor) FEUP; Calcada, R (Autor) FEUP

Revista

Título: Engineering Fracture Mechanics

Vol. 93 Nº October

Páginas: 75-91

ISSN: 0013-7944

Editora: Elsevier

Indexação

ISI Web of Knowledge - 10 Citações

ISI Web of Science

Scopus - 13 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia mecânica ; Ciências Tecnológicas > Engenharia > Engenharia civil

Outras Informações

ID Authenticus: P-002-53S

DOI: 10.1016/j.engfracmech.2012.06.009

Abstract (EN): The fatigue analysis of large engineering structures using Fracture Mechanics is usually conditioned by the computationally expensive numerical models needed, leading to difficult use in dynamic analyses. This paper presents a novel methodology developed with the aim to overcome the above mentioned limitation. A new concept, of modal stress intensity factor, arises, allowing a strong reduction of the calculations needed, yet keeping the accuracy. This methodology was tested using a simple example. Results were in excellent agreement with those obtained with common procedures and with widely accepted handbook expressions. The methodology proved to be compatible, also, with the utilization of submodeling techniques.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17