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oai:riubu.ubu.es:10259/56572021-11-02T12:04:44Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505

00925njm 22002777a 4500 dc Cuesta Segura, Isidoro Iván author Willig, A. author Díaz Portugal, Andrés author Martínez Pañeda, Emilio author Alegre Calderón, Jesús Manuel author 2019-02 In recent years, the pre-notched or pre-cracked small punch test (P-SPT) has been successfully used to estimate the fracture properties of metallic materials for cases in which there is not sufficient material to identify these properties from standard tests, such as CT or SENB specimens. The P-SPT basically consists of deforming a pre-notched miniature specimen, whose edges are firmly gripped by a die, using a high strength punch. The novelty of this paper lies in the estimation of fracture properties using dog-bone-shaped specimens with different confinement levels. With these specimens, three confinement variations have been studied. The results obtained enable the establishment of a variation of fracture properties depending on the level of confinement of each miniature specimen and selection of the most appropriate confinement for this goal. 1350-6307 http://hdl.handle.net/10259/5657 10.1016/j.engfailanal.2018.10.012 Fracture properties Pre-notched small punch test Confinement level Dog-bone-shaped specimen Pre-notched dog bone small punch specimens for the estimation of fracture properties