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

Title

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

 Author

Raimondo, A. (TU Delft Aerospace Structures & Computational Mechanics)
Dávila, Carlos G. (NASA Langley Research Center)
Bisagni, C. (TU Delft Aerospace Structures & Computational Mechanics) ORCID 0000-0002-8713-9763

 Date

2022

 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.


 Subject

cohesive zone model
delamination
fatigue
Paris law
S-N diagram

 To reference this document use:

http://resolver.tudelft.nl/uuid:01e3c610-16f7-465c-90ee-406aece528dd

 DOI

https://doi.org/10.1111/ffe.13712

 ISSN

8756-758X

 Source

Fatigue & Fracture of Engineering Materials and Structures, 45 (7), 1942-1952

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2022 A. Raimondo, Carlos G. Dávila, C. Bisagni
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