Bond–slip behavior under monotonic uniaxial loads

Study on Load-Slip Characteristic Curves of Perfobond Shear Connectors in Hybrid Structures

“…Meanwhile, the slopes of the strain curves (strain gradient) grew as well. According to the relationship between strain gradient and bond stress (Kwak et al 2001), bond and friction stress around the perforated plate also continuously increased with load increasing, in which the interface shear of friction between the perforated plate and the surrounding concrete could be gained by the integral of the strain gradient along the whole height of the perforated plate in the loading direction. The interface shear of friction accounted for a considerable proportion for the bearing capacity of PBL connectors as a large slip occurred in the later loading stage.…”

Damage modelling of reinforced concrete beams

“…However, the damage scalar variable is defined in terms of the equivalent strain given by Eq. (5). For this criterion, closed expressions to compute the damage variable were established.…”

“…Local effects due to crack formations, bond-slip effects for instance, may be incorporated in the model using approximated models already proposed by other authors [3][4][5]. These effects can be also considered by using even more simple models, for which average values of the ultimate bond stress between cracks are assumed.…”

“…They are highly influenced by both the steel bar stiffness and the longitudinal reinforcement rates. There are many studies and several proposed approximate models to consider the aggregate interlock and the dowel action effects to predict the behaviour of reinforced concrete elements after the crack localization [5,[11][12][13][14][15][16].…”

Prediction of Bond Between Steel and Concrete by Numerical Analysis

“…Ones of the most widely used bond stress-slip relationship is proposed by Ciampi et al [2] and Eligehausen et al (1983) [3]. More, many researchers have developed analytical and numerical models yielding to stress-slip response and bond stress distribution of reinforced concrete members [4][5][6][7][8][9][10][11][12][13]. The common object is to have a reliable analysis that takes into account the effective behavior of the composite reinforcedconcrete structures.…”