Artigo De: orcid, scopus, cienciavitae
Assessment of fracture toughness in ornamental stones
International Journal of Rock Mechanics & Mining Sciences
— 2008 — Elsevier
Informações chave
Autores:
Publicado em
1 de janeiro de 2008
Resumo
This paper describes the advantages and disadvantages of using different methodologies that apply bending fixtures for determining the fracture toughness of different stones. In general, the experimental results tend to show less variability when applying a 4-point bending mode. The comparison of the results obtained using the different experimental procedures also has stressed the great importance of using sharp notches in order to avoid overestimation of fracture toughness. This specific aspect has been also analysed in detail by performing a fractographic examination of unnotched bar specimens submitted to a 4-point bending test. This procedure shows how it is possible to locate and measure the origin of fracture, which contributes, among other things, to discuss the failure mechanisms of stones. Fracture toughness values also have been estimated via fractographic examination and the results compared with those obtained when applying the experimental methodologies.
Detalhes da publicação
Autores da comunidade :
Luís Manuel Guerra da Silva Rosa
ist11630
Versão da publicação
AO - Versão original do autor
Editora
Elsevier
Ligação para a versão da editora
https://www.sciencedirect.com/science/article/pii/S1365160907001153?via%3Dihub
Título do contentor da publicação
International Journal of Rock Mechanics & Mining Sciences
Primeira página ou número de artigo
554
Última página
563
Volume
45
Fascículo
4
ISSN
1365-1609
WoS (Web of Science)
Domínio Científico (FOS)
materials-engineering - Engenharia dos Materiais
Palavras-chave
- Fracture toughness
- Fractography
- Rock mechanics
- Liner elastic fracture mechanics
Idioma da publicação (código ISO)
eng - Inglês
Identificador alternativo (URI)
http://www.scopus.com/inward/record.url?eid=2-s2.0-40649095270&partnerID=MN8TOARS
Acesso à publicação:
Acesso apenas a metadados
Licença Creative Commons
CC-BY-NC-ND - Atribuição-NãoComercial-SemDerivações