Progressive damage analysis of adhesively bonded patch repaired carbon fibre–reinforced polymer specimen under compression involving cohesive zone model

Abstract

In this paper, the in-plane compression behaviour of open-hole carbon fibre composite specimens adhesively bonded with the external carbon fibre composite patches on the single- and double side are studied. Uniaxial compression tests are conducted on MTS machine using ASTM anti-buckling fixture. A 3D progressive damage model is developed to predict the damage initiation and failure in both unrepaired open cutout and repaired carbon fibre composite specimens under compressive load. Stress-based 3D-Hashin's failure criteria are used for predicting the fibre and matrix damage in carbon fibre composite. The cohesive zone model element is used for modelling the interlaminar delamination in carbon fibre composite specimen and also the adhesive layer between patch and specimen. Initial stiffness, damage initiation load and ultimate load of the specimen are obtained using progressive damage model based on finite element analysis, and they are compared against the experimental values. The load–deflection curve and the damage progression obtained from finite element analysis using progressive damage model is found to be in good coherence with the experimental predictions. In case of patch bonded carbon fibre composite specimens, failure mechanism starts with partial patch debonding followed by complete specimen failure.

A review on composite patch repairs and the most important parameters affecting its efficiency and durability

“…Repaired samples with composite patch and bolt clamping exhibited up to 44% and 24% increase in tensile strength under the pure tensile mode, respectively. 77 In Matta et al., 78 the in-plane compression behavior of open-hole carbon fiber composite specimens adhesively bonded with the external carbon fiber composite patches was studied. In the case of the patch bonded carbon fiber composite specimens, the failure mechanism starts with partial patch debonding followed by complete specimen failure.…”

Damage characterization of dental nanocomposite adhesive in orthodontic treatment applications

“…Several models have been developed for reliability and damage assessment of interface of two continuum bodies (Shodja and Hashemian, 2020; Yang et al., 2020), among which cohesive zone model (CZM) is often used to predict the strength of bonded interface under single- and mixed-modes loading conditions (Chen et al., 2021; Dávila and Camanho, 2003; Koloor et al., 2019; Matta et al., 2019). Indeed, CZM has been applied to model the elastic-damage behavior of the biomedical bonded joints such as dental restorations and bone tissue (Ichim et al., 2007; Li et al., 2011; Ng et al., 2017).…”

“…Indeed, CZM has been applied to model the elastic-damage behavior of the biomedical bonded joints such as dental restorations and bone tissue (Ichim et al., 2007; Li et al., 2011; Ng et al., 2017). A reliable result of the FE model incorporating CZM theory for bonded joints depends on the precise characterization of the adhesive interface properties in single-modes I and II of loadings (Carvalho and Campilho, 2018; Matta et al., 2019). In this respect, implementations of systematic experiments for direct modes I and II tests on the bonded joints were proposed, for precise determination of the CZM parameters (Carvalho and Campilho, 2018; Hortnagl, 2013; Khayer et al., 2013; R.…”

A time-dependent tensile constitutive model for long-fiber-reinforced unidirectional ceramic-matrix minicomposites considering interface and fiber oxidation

“…The mechanical properties reflect the damage resistance of composites under different loading conditions, which is an important index for the safety design of components (Baranger, 2013; Chen et al., 2007; Christopher and Choudhary, 2019; Marcin et al., 2011). It is directly related to the safety and reliability of components in service and the predictability of damage (Bache et al., 2019; Baranger, 2019; Mareau and Morel, 2019; Matta et al., 2019; Yu et al., 2019). The tensile stress–strain behavior reflects the strength of the composite material to resist the damage of external tensile loading.…”