Cohesive analysis of a 3D benchmark for delamination growth under quasi-static and fatigue loading conditions

Antonio Raimondo; Carlos G. Dávila; Chiara Bisagni

doi:10.1111/ffe.13712

Cohesive analysis of a 3D benchmark for delamination growth under quasi-static and fatigue loading conditions

Antonio Raimondo^*, Carlos G. Dávila, Chiara Bisagni

^*Corresponding author for this work

Aerospace Structures & Computational Mechanics

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

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Abstract

This paper evaluates the capabilities of the recently developed CF20 cohesive fatigue model, which can predict crack initiation as well as the rates of crack propagation by relying on intrinsic relationships between a stress-life diagram and its corresponding Paris law. The model is validated here using a partially reinforced double cantilever beam (R-DCB) benchmark proposed in literature. The two parameters needed for the CF20 cohesive fatigue model were obtained by performing preliminary analyses of a conventional DCB. The analysis results indicate that the CF20 cohesive fatigue model can accurately reproduce the complex evolution of the delamination observed in the R-DCB.

Original language	English
Pages (from-to)	1942-1952
Number of pages	11
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	45
Issue number	7
DOIs	https://doi.org/10.1111/ffe.13712
Publication status	Published - 2022

Keywords

cohesive zone model
delamination
fatigue
Paris law
S-N diagram

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10.1111/ffe.13712

Fatigue Fract Eng Mat Struct - 2022 - Raimondo - Cohesive analysis of a 3D benchmark for delamination growth underFinal published version, 2.42 MBLicence: CC BY-NC-ND

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abstract = "This paper evaluates the capabilities of the recently developed CF20 cohesive fatigue model, which can predict crack initiation as well as the rates of crack propagation by relying on intrinsic relationships between a stress-life diagram and its corresponding Paris law. The model is validated here using a partially reinforced double cantilever beam (R-DCB) benchmark proposed in literature. The two parameters needed for the CF20 cohesive fatigue model were obtained by performing preliminary analyses of a conventional DCB. The analysis results indicate that the CF20 cohesive fatigue model can accurately reproduce the complex evolution of the delamination observed in the R-DCB.",

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AU - Raimondo, Antonio

AU - Dávila, Carlos G.

AU - Bisagni, Chiara

PY - 2022

Y1 - 2022

N2 - This paper evaluates the capabilities of the recently developed CF20 cohesive fatigue model, which can predict crack initiation as well as the rates of crack propagation by relying on intrinsic relationships between a stress-life diagram and its corresponding Paris law. The model is validated here using a partially reinforced double cantilever beam (R-DCB) benchmark proposed in literature. The two parameters needed for the CF20 cohesive fatigue model were obtained by performing preliminary analyses of a conventional DCB. The analysis results indicate that the CF20 cohesive fatigue model can accurately reproduce the complex evolution of the delamination observed in the R-DCB.

AB - This paper evaluates the capabilities of the recently developed CF20 cohesive fatigue model, which can predict crack initiation as well as the rates of crack propagation by relying on intrinsic relationships between a stress-life diagram and its corresponding Paris law. The model is validated here using a partially reinforced double cantilever beam (R-DCB) benchmark proposed in literature. The two parameters needed for the CF20 cohesive fatigue model were obtained by performing preliminary analyses of a conventional DCB. The analysis results indicate that the CF20 cohesive fatigue model can accurately reproduce the complex evolution of the delamination observed in the R-DCB.

KW - cohesive zone model

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KW - Paris law

KW - S-N diagram

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ER -

Cohesive analysis of a 3D benchmark for delamination growth under quasi-static and fatigue loading conditions

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Keywords

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