Data of: "Exploiting intrinsic size effect to overcome specimen scaling limitations in fracture toughness characterisation of composite materials"
Description
This study investigates the use of an intrinsic size effect methodology for fracture toughness characterisation, where geometrical specimen scaling is severely limited. The analytical formulation of the intrinsic method is validated both experimentally and numerically for intralaminar characterisation. Employing a woven carbon fibre-reinforced composite, the intrinsic methodology is able to increase the brittleness ratio of the tested size range, by combining different types of notched geometries. The R-curve is successfully obtained through a bilogarithmic regression fit of the intrinsic strength data, that is able to account for the individual manufacturing tolerances of all tested specimens. The first author would like to acknowledge the financial support of the TEMPEST project (H2020-WF- 2018-2020), which received funding from the European Union's Horizon 2020 research and innovation programme under the grant agreement No 101038082. The content reflects only the authors’ views and the Agency is not responsible for any use that may be made of the information it contains.