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

Tommaso Scalici, Giuseppe Pitarresi, Van Der Meer, Catalanotti, Furtado, Camanho, Giuseppe Catalanotti

Risultato della ricerca: Articlepeer review

25 Citazioni (Scopus)

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.
Lingua originaleEnglish
pagine (da-a)153-163
Numero di pagine11
RivistaComposite Structures
Volume182
Stato di pubblicazionePublished - 2017

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering

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