Fracture mechanics of plate debonding: Validation against experiment
Citations
214 citations
Cites background from "Fracture mechanics of plate debondi..."
...However, the weakness of FRCM–concrete joints appears to be at the matrix–fiber interface [18–23] rather than in the substrate or at the matrix–concrete interface, as is typically observed with FRP composites [24–38]....
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88 citations
43 citations
Cites background from "Fracture mechanics of plate debondi..."
...The limited scientific literature available regarding FRCM composites reports that the weakness is located at the matrix-fiber interface [3-8] rather than within the substrate or at the matrix-concrete interface, as is typically observed with FRP composites [9-21]....
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41 citations
Cites background or methods or result from "Fracture mechanics of plate debondi..."
...This is consistent with earlier analyses of FRP debonding [3] that have shown that cracks of about 20–30 mm and 2–5 mm long cause PE and IC debonding respectively (note: length of the FPZ 300 mm)....
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...The authors have previously developed a fracture mechanics model to analyse FRP debonding; the model has been validated against many experiments carried out by others [3]....
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...It has been shown that the incorporation of GCI determined this way in the debonding analysis gives predictions that match the test results reported in the literature [3]....
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...The model predictions, based on this concept adopted in the analyses, matched well with test data reported in the literature [3]....
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...The paper shows how the fracture energies of the beams quoted in the earlier papers by the authors [3] were determined....
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36 citations
Cites background or methods from "Fracture mechanics of plate debondi..."
...Following the laboratory testing campaign [1] and r esults stemming from other applications [5-7, 21-25 , 34], a four-point bending test (4PB), used on concrete b ams strengthened by externally-bonded plates, has been adapted for the pair of bituminous and cement concr ete materials [35] (see Fig....
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...effect and the loading rate on mechanical propertie s of bituminous material as well as to the position of the load close to the vertical crack, plays an importan t role in the long-term performance of the bond [34]....
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...In addition, for few t ype I specimens and results stemming from the liter ature [7, 24, 34], some additional cracks at the bottom of th e cement concrete under point B or C in Figure 4a m ay have occurred prior to delamination at location poi nt A or D....
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References
3,828 citations
374 citations
"Fracture mechanics of plate debondi..." refers background in this paper
...L0_eff plot for Beam 8 (Triantafillou and Plevris [15])....
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...Triantafillou and Plevris [15] investigated the effect of the CFRP plate area on the failure load and the failure mode of strengthened beams....
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...Triantafillou and Plevris [15] Triantafillou and Plevris [15] investigated the effect of the CFRP plate area on the failure load and the failure mode of strengthened beams....
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255 citations
Additional excerpts
...[8,9]); thus, the additional ineffective length of the FRP just before critical debonding is expected to be within one cover distance (c) from the actual plate end....
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...[8] Beam A4 was strengthened with a single layer of CFRP plate (curtailed at L0 = 150 mm), and failed by PE debonding at the internal tension steel level which originated as a shear crack at the plate end....
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201 citations
"Fracture mechanics of plate debondi..." refers background in this paper
...[17]) for fractures starting at (a) different locations (b) 90% of the failure load....
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...The observed IC debonding failures of three sets of beams (Groups 1–3) reported in [17] are analysed, assuming that debonding initiates by widening of a flexural crack in one of the shear spans at a half beam depth (h) away from the loading point....
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183 citations
Additional excerpts
...[10], Beams A950 and B2, with different internal tension steel arrangements, were strengthened with CFRP plates of different lengths (quoted in Table 1); both beams failed due to PE debonding....
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...For example, Beam A950 in [10], discussed above, failed due to an infinitesimal interface crack developed at the actual plate end, but it would have also failed at 90% of the reported failure load if there had been a 20 mm long interface crack (Fig....
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