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.

Catalanotti, G., Furtado, C., Scalici, T., Pitarresi, G., van der Meer, F., & Camanho, P. (2017). The effect of through-thickness compressive stress on mode II interlaminar fracture toughness. COMPOSITE STRUCTURES, 182, 153-163 [10.1016/j.compstruct.2017.09.014].

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

CATALANOTTI, GIUSEPPE
;
Scalici, T.;Pitarresi, G.;
2017

Abstract

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.
Settore ING-IND/02 - Costruzioni E Impianti Navali E Marini
Settore ING-IND/04 - Costruzioni E Strutture Aerospaziali
Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchine
Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali
Settore ICAR/08 - Scienza Delle Costruzioni
Catalanotti, G., Furtado, C., Scalici, T., Pitarresi, G., van der Meer, F., & Camanho, P. (2017). The effect of through-thickness compressive stress on mode II interlaminar fracture toughness. COMPOSITE STRUCTURES, 182, 153-163 [10.1016/j.compstruct.2017.09.014].
File in questo prodotto:
File Dimensione Formato  
1-s2.0-S0263822317318512-main.pdf

non disponibili

Tipologia: Versione Editoriale
Dimensione 2.57 MB
Formato Adobe PDF
2.57 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/266024
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 32
  • ???jsp.display-item.citation.isi??? 27
social impact