Estimation of the stress intensity factor in a wedge splitting test under static load using the finite elements method

Estimación del factor de intensidad de esfuerzo en una probeta wedge splitting bajo carga estática mediante el método de elementos finitos

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Diego Enrique Poveda Díaz
Manuel del Jesús Martínez
Abstract

The stress intensity factor (SIF) is a parameter to define the stress field to which a cracked body is loaded under the guidelines of linear elastic fracture mechanics (LEFM). The value of the stress intensity factor SIF is function of the applied stress, crack length and the general geometry of the specimen. There are several experimental methods to calculate this stress intensity factor, among which the Wedge Splitting Test (WST) stands out. In the present work, the stress intensity factor for a WST specimen of concrete is calculated using the finite element technique maintaining a constant load and making variations in the crack length and the geometry. Then the results are compared with an experimental correlation taken from the literature.

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