Prediction of the propagation direction of a crack that attacks the interface at an arbitrary angle

Đoković, Jelena; Nikolić, Ružica

doi:10.1016/j.prostr.2022.12.241

Article Metadata only M23

2023

Đoković, Jelena
Nikolić, Ružica

Elsevier BV, Netherlands

Procedia Structural Integrity

100

English

M23 - Paper in an international journal

The problem of a crack subjected to uniaxial tension, approaching an interface between the two materials at an arbitrary angle, is considered. Prediction of the crack propagation was based on the linear elastic fracture mechanics (LEFM) concept. Obtained results show that the crack that attacks the interface at a right angle, coming from the softer material, would not penetrate the interface and would not continue to propagate across it, but that it would bounce back to the material it is coming from and continue to propagate along the path close to the interface. The similar situation is for the crack attacking the interface at an angle of 75°. It would also bounce away from the interface, though it might also deflect into it if the interface was weak. For the attack angle of 60°, as well as for the smaller angles, the crack would penetrate the interface and continue to propagate in the material across it. The prediction of the crack propagation direction was done for the two bimaterial combinations. Based on results, presented in this paper, it is possible to establish the criteria for predicting the propagation direction of a crack attacking the interface at an arbitrary angle.

Interface crack, arbitrary attacking angle, stress intensity factor, LEFM concept

DOI

10.1016/j.prostr.2022.12.241

ISSN

2452-3216

URI

https://www.sciencedirect.com/science/articl...
https://repozitorijum.tfbor.bg.ac.rs/handle/...

Scopus

OpenCitations

dc.rights.license	CC BY-NC-ND
dc.identifier.uri	https://www.sciencedirect.com/science/article/pii/S2452321622008046
dc.identifier.uri	https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/798
dc.description.abstract	The problem of a crack subjected to uniaxial tension, approaching an interface between the two materials at an arbitrary angle, is considered. Prediction of the crack propagation was based on the linear elastic fracture mechanics (LEFM) concept. Obtained results show that the crack that attacks the interface at a right angle, coming from the softer material, would not penetrate the interface and would not continue to propagate across it, but that it would bounce back to the material it is coming from and continue to propagate along the path close to the interface. The similar situation is for the crack attacking the interface at an angle of 75°. It would also bounce away from the interface, though it might also deflect into it if the interface was weak. For the attack angle of 60°, as well as for the smaller angles, the crack would penetrate the interface and continue to propagate in the material across it. The prediction of the crack propagation direction was done for the two bimaterial combinations. Based on results, presented in this paper, it is possible to establish the criteria for predicting the propagation direction of a crack attacking the interface at an arbitrary angle.
dc.language.iso	en
dc.publisher	Elsevier BV, Netherlands
dc.source	Procedia Structural Integrity
dc.subject	Interface crack
dc.subject	arbitrary attacking angle
dc.subject	stress intensity factor
dc.subject	LEFM concept
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.title	Prediction of the propagation direction of a crack that attacks the interface at an arbitrary angle
dc.type	article
dc.type.version	publishedVersion
dc.citation.volume	43
dc.citation.spage	95
dc.citation.epage	100
dc.citation.rank	M23
dc.creator	Đoković, Jelena
dc.creator	Nikolić, Ružica
dc.date.accessioned	2023-12-25T21:47:22Z
dc.date.available	2023-12-25T21:47:22Z
dc.date.issued	2023
dc.identifier.issn	2452-3216
dc.identifier.doi	10.1016/j.prostr.2022.12.241


Prediction of the propagation direction of a crack that attacks the interface at an arbitrary angle	1