Interaction of periodic arrays of wing cracks

Juha Kuutti; Kari Kolari

doi:10.1016/j.engfracmech.2018.03.030

Interaction of periodic arrays of wing cracks

Juha Kuutti (Corresponding Author), Kari Kolari

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

1 Citation (Scopus)

Abstract

A method for evaluating the interaction of wing cracks in 2-D and 3-D is presented. The method utilizes the assumption that the wing crack can be represented by its extensions and the interaction is solved using a superposition method presented by Kachanov. The method is applied to arrays of parallel initial cracks to determine the critical crack array orientations and assess whether the coalescence of closely-spaced small cracks causing a shear-like failure observed in 2-D is possible in 3-D. The results show that the shear failure can be achieved also in 3-D, but not with such an instability as in 2-D.

Original language	English
Pages (from-to)	17-30
Number of pages	14
Journal	Engineering Fracture Mechanics
Volume	200
DOIs	https://doi.org/10.1016/j.engfracmech.2018.03.030
Publication status	Published - Sep 2018
MoE publication type	A1 Journal article-refereed

Fingerprint

Keywords

brittle fracture
shear fracture
crack interaction
wing crack

Cite this

Kuutti, J., & Kolari, K. (2018). Interaction of periodic arrays of wing cracks. Engineering Fracture Mechanics, 200, 17-30. https://doi.org/10.1016/j.engfracmech.2018.03.030

@article{644fbc02818346cc8dcc521e22416cea,

title = "Interaction of periodic arrays of wing cracks",

abstract = "A method for evaluating the interaction of wing cracks in 2-D and 3-D is presented. The method utilizes the assumption that the wing crack can be represented by its extensions and the interaction is solved using a superposition method presented by Kachanov. The method is applied to arrays of parallel initial cracks to determine the critical crack array orientations and assess whether the coalescence of closely-spaced small cracks causing a shear-like failure observed in 2-D is possible in 3-D. The results show that the shear failure can be achieved also in 3-D, but not with such an instability as in 2-D.",

keywords = "brittle fracture, shear fracture, crack interaction, wing crack",

author = "Juha Kuutti and Kari Kolari",

year = "2018",

month = sep

doi = "10.1016/j.engfracmech.2018.03.030",

language = "English",

volume = "200",

pages = "17--30",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

publisher = "Elsevier",

}

TY - JOUR

T1 - Interaction of periodic arrays of wing cracks

AU - Kuutti, Juha

AU - Kolari, Kari

PY - 2018/9

Y1 - 2018/9

N2 - A method for evaluating the interaction of wing cracks in 2-D and 3-D is presented. The method utilizes the assumption that the wing crack can be represented by its extensions and the interaction is solved using a superposition method presented by Kachanov. The method is applied to arrays of parallel initial cracks to determine the critical crack array orientations and assess whether the coalescence of closely-spaced small cracks causing a shear-like failure observed in 2-D is possible in 3-D. The results show that the shear failure can be achieved also in 3-D, but not with such an instability as in 2-D.

AB - A method for evaluating the interaction of wing cracks in 2-D and 3-D is presented. The method utilizes the assumption that the wing crack can be represented by its extensions and the interaction is solved using a superposition method presented by Kachanov. The method is applied to arrays of parallel initial cracks to determine the critical crack array orientations and assess whether the coalescence of closely-spaced small cracks causing a shear-like failure observed in 2-D is possible in 3-D. The results show that the shear failure can be achieved also in 3-D, but not with such an instability as in 2-D.

KW - brittle fracture

KW - shear fracture

KW - crack interaction

KW - wing crack

UR - http://www.scopus.com/inward/record.url?scp=85049727657&partnerID=8YFLogxK

U2 - 10.1016/j.engfracmech.2018.03.030

DO - 10.1016/j.engfracmech.2018.03.030

M3 - Article

VL - 200

SP - 17

EP - 30

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 0013-7944

ER -

Access to Document

10.1016/j.engfracmech.2018.03.030

Link to publication in Scopus