Effect of creep on the mode II residual fracture energy of adhesives

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Neto, RMC (Autor) Outra; Akhavan Safar, A (Autor) Outra; Sampaio, EM (Autor) Outra; Assis, JT (Autor) Outra; da Silva, LFM (Autor) FEUP

Revista

Título: Journal of Applied Polymer Science

Vol. 138

ISSN: 0021-8995

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 5 Citações

Outras Informações

ID Authenticus: P-00V-5YB

DOI: 10.1002/app.51387

Abstract (EN): Viscous flow that often occurs in adhesive materials leads to a permanent deformation when adhesives are subjected to creep loading. Creep loading has a significant influence on the strength of bonded structures. Due to the viscous behavior, the fracture energy also may change with time for joints that experience creep loading in service. In this work the effects of two creep parameters (creep load and time) on the residual mode II fracture energy of an adhesive was investigated using end notched flexure (ENF) specimens. To achieve this, ENF samples were subjected to different creep loading levels at different creep times followed by quasi static tests to obtain the residual shear fracture energy of the adhesive. Experimental results showed that pre-creep loading of the bonded structures can significantly improve the fracture energy and the static strength of the joints.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12