Prediction of size effect and non-linear crack growth in plain concrete under fatigue loading

General cracked-hinge model for simulation of low-cycle damage in cemented beams on soil

“…For the semi-analytical hinge models published in the literature, see eg. [20,25,33,26], sectional forces are calculated over the full beam-hinge segment (integration in blocks) for a given stress crack-opening relationship. A similar approach was used in the fnite element implementation of the crackedhinge reported by Olesen and Poulsen [23].…”

“…The basic idea of the hinge has also been used for studying cyclic fatigue of plain concrete beams [24,25,26], as well as reinforced and fiberreinforced concrete beams [27,28,29,30]. Maitra et al [31] applied the influence method [32] in conjunction with the stress-degradation law proposed by Zhang et al [25] to simulate fatigue crack length propagation in plain concrete pavements.…”

<b>Mechanical analysis of a shear-cracked RC beam

“…Since a significant amount of energy is stored in the FPZ, a crack can have stable growth before the peak load (Simon & Kishen, 2017). The energy consumed in this process is the fracture energy required for creating a new crack surface (Brake & Chatti, 2013;Dai & Ng, 2014;Ohno, Uhi, Ueno, & Ohtsu, 2014).…”

A simple model for fatigue crack growth in concrete applied to a hinge beam model

“…For structural analysis of concrete beams, the fiber stress-mean strain relationship is incorporated in a hinge as proposed by Skar et al [23]. Hinge models have been effectively applied for studying crack growth phenomenon in both plain concrete beams [24,25,26,27], as well as reinforced and fiberreinforced concrete beams [28,10,29,30,31]. For the hinge, which is a finite part of the beam, a relationship between the generalized sectional forces and strains is established.…”