Micromechanics of crack bridging in fibre-reinforced concrete

Fatigue life analysis of fiber reinforced concrete with a fracture mechanics based model

“…It should be noted that the current theoretical model applies to any given FRC with friction controlled fibermatrix interface, if all the microstructural parameters shown in Tables 1 through 4 and 6 through 8 are available for the model. These microstructural parameters for the five materials in this study are typically observed values that have been obtained from several independent measurements by other researchers 9,22,25,27,28 and used in the theoretical analysis.…”

“…The values of  o and a 1 are shown in Table 4. These values for HS1, HS2, and HYB are obtained from experimental evaluations on the same concrete mix, and those for SS1 are chosen based on typically observed values 27,28 .…”

Punching shear strength of steel fibre reinforced concrete slabs

“…Some simplified relationships based on material testing are proposed in the first complete draft of Model Code [13,14] for conventional FRC. A number of sophisticated and more accurate models based on deterministic and micromechanical models are also available in the scientific literature, such as those of Aveston and Kelly [22], Lim et al [23], Li et al [24] and Voo and Foster [25]. In particular, the Variable Engagement Model (VEM) proposed by Voo and Foster describes the behaviour of randomly oriented steel fibre reinforced composites subjected to uniaxial tension.…”

Fatigue crack growth analysis of fiber reinforced concrete with effect of interfacial bond degradation

“…Slip softening relation at the fiber-matrix interface under monotonic loading is used. 32 The relation is given by…”

“…32,[35][36][37] Another implication of the present model is on efficient prediction of fatigue life of a structural member subjected to high frequency cyclic loading. Although the model calculations have been carried out for an FRC beam under flexural loading, the fundamental concept behind this fatigue model is widely applicable to other body geometry and loading configuration.…”