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GIUSEPPE PITARRESI

The Transverse Crack Tension test revisited: An experimental and numerical study

  • Authors: Scalici, T.; Pitarresi, G.; Catalanotti, G.; van der Meer, F.; Valenza, A.
  • Publication year: 2016
  • Type: Articolo in rivista (Articolo in rivista)
  • Key words: Delamination; Experimental methods; Fracture toughness; Numerical analysis; Ceramics and Composites; Civil and Structural Engineering
  • OA Link: http://hdl.handle.net/10447/202356

Abstract

Several problems arise when measuring the mode II interlaminar fracture toughness using a Transverse Crack Tension specimen; in particular, the fracture toughness depends on the geometry of the specimen and cannot be considered a material parameter. A preliminary experimental campaign was conducted on TCTs of different sizes but no fracture toughness was measured because the TCTs failed in an unacceptable way, invalidating the tests. A comprehensive numerical and experimental investigation is conducted to identify the main causes of this behaviour and a modification of the geometry of the specimen is proposed. It is believed that the obtained results represent a significant contribution in the understanding of the TCT test as a mode II characterization procedure and, at the same time, provide new guidelines to characterize the mode II crack propagation under tensile loads.