The effect of through-thickness compressive stress on mode II interlaminar fracture toughness

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Catalanotti, G (Author) Other; Furtado, C (Author) FEUP; Scalici, T (Author) Other; Pitarresi, G (Author) Other; van der Meer, FP (Author) Other; Camanho, PP (Author) FEUP

Journal

Title: Composite Structures

Vol. 182

Pages: 153-163

ISSN: 0263-8223

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 30 Citations

Scopus - 38 Citations

Other information

Authenticus ID: P-00N-1NR

DOI: 10.1016/j.compstruct.2017.09.014

Abstract (EN): The effect of through-thickness compressive stress on mode II interlaminar fracture toughness is investigated experimentally and replicated numerically. The modified Transverse Crack Tensile specimen recently proposed by the authors is used, together with an experimental device designed to apply a constant transverse compressive stress on the surface of the specimen. Experiments are conducted using IM7/8552 specimens for different compressive stresses, ranging from 0 to 100 MPa, covering all the practical applications commonly encountered in the aeronautical industry (e.g., tightened filled holes or bolted joints). It is shown that mode II interlaminar fracture toughness increases with the applied compressive through-thickness stress. Finally, experiments are replicated using appropriate numerical models based on cohesive elements that take into account frictional effects. A good agreement between numerical predictions and experiments is found.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11