Strength prediction of patch-repaired CFRP laminates loaded in compression

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Modelling single and double-lap repairs on composite materials (2005, methodology): “The results presented at [2] refer to a similar situation, but considering a glass–fibre composite and a compressive load.”
Using a cohesive damage model to predict the tensile behaviour of CFRP single-strap repairs (2008, methodology): “A linear toughness based criterion (Hutchinson and Suo, 1992) was used to assess complete failure of the EPZ elements and subsequent crack growth.”
Progressive failure analysis of bonded composite repairs (2007, background): “Therefore, in recent years, considerable experimental [3–6] and numerical studies [7–12] have been conducted to investigate the influence of different repair parameters on the stress distribution, ultimate strength, and stress intensity factor of the bonded repaired structures.”
Modelling adhesive joints with cohesive zone models: effect of the cohesive law shape of the adhesive layer (2013, background): “This shows that the adhesive plasticity always held up crack initiation at the overlap edges up to Pm, keeping these regions at the peak strength, while stresses increased at the inner regions [48].”
Modelling the tensile fracture behaviour of CFRP scarf repairs (2009, methodology): “predict failure of these joints or repairs, using adequate failure criteria [8–10].”