Abstract
In some previous papers, we presented some linear stability analyses of the coplanar propagation of a crack loaded in mixed-mode I + III, using a propagation criterion combining a Griffith-type energetic condition and Goldstein and Salganik’s “principle of local symmetry”. In the last one, the local value of the fracture energy was no longer considered as a constant but heuristically permitted to depend upon the ratio of the local mode III to mode I stress intensity factors. As a result, a much improved agreement of theory and experimental observations was obtained for the “threshold” value of the ratio of the unperturbed mode III to mode I stress intensity factors, above which coplanar propagation becomes unstable. This analysis is extended here to the situation, of considerable practical significance, where a small additional mode II loading component is present in the initially planar configuration of the crack. This component induces a small, general kink of this crack from the moment it is applied. The main novelty resulting from its application is that the instability modes, present above the threshold, must drift along the crack front during its propagation. It is hoped that this prediction will be useful to theoretically interpret a number of experiments where such a drifting motion was indeed observed but left unexplained.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Leblond, J.B., Karma, A., Lazarus, V.: Theoretical analysis of crack front instability in mode I+III. J. Mech. Phys. Solids 59, 1872–1887 (2011)
Gao, H., Rice, J.R.: Shear stress intensity factors for planar crack with slightly curved front. ASME J. Appl. Mech. 53, 774–778 (1986)
Movchan, A.B., Gao, H., Willis, J.R.: On perturbation of plane cracks. Int. J. Solids Struct. 35, 3419–3453 (1998)
Griffith, A.: The phenomena of rupture and flow in solids. Phil. Trans. R. Soc. Lond. Ser. A 221, 163–198 (1920)
Goldstein, R.V., Salganik, R.L.: Brittle fracture of solids with arbitrary cracks. Int. J. Fract. 10, 507–523 (1974)
Leblond, J.B., Karma, A., Ponson, L., Vasudevan, A.: Configurational stability of a crack propagating in a material with mode-dependent fracture energy—part I: mixed-mode I+III. Submitted to J. Mech. Phys. Solids (2018)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Switzerland AG
About this paper
Cite this paper
Leblond, JB., Karma, A., Ponson, L., Vasudevan, A. (2019). Configurational Stability of a Crack Propagating in Mixed-Mode I + II + III. In: Gdoutos, E. (eds) Proceedings of the Second International Conference on Theoretical, Applied and Experimental Mechanics. ICTAEM 2019. Structural Integrity, vol 8. Springer, Cham. https://doi.org/10.1007/978-3-030-21894-2_20
Download citation
DOI: https://doi.org/10.1007/978-3-030-21894-2_20
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-21893-5
Online ISBN: 978-3-030-21894-2
eBook Packages: EngineeringEngineering (R0)