Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model

Naoki Fukumura; Tomohiro Suzuki; Shigeru Hamada; Kaneaki Tsuzaki; Hiroshi Noguchi

doi:10.1016/j.engfracmech.2015.01.003

Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model

Naoki Fukumura, Tomohiro Suzuki, Shigeru Hamada, Kaneaki Tsuzaki, Hiroshi Noguchi

Strength of materials

Research output: Contribution to journal › Article

17 Citations (Scopus)

Abstract

The threshold stress intensity factor range δK_th was analytically calculated under stress control conditions using the plasticity-induced crack closure analysis with the Dugdale model. Before obtaining δK_th, the accuracy of the method was verified. The characteristics of the crack closure behavior were discussed by specifying the small-scale yielding (SSY) and large-scale yielding (LSY). The analysis results of δK_th were discussed systematically by non-dimensionalizing them with the Dugdale model. Under the SSY condition, δK_th was dependent on Young's modulus and Poisson's ratio. Under the LSY condition, δK_th increased when the initial crack length or yield strain increased.

Original language	English
Pages (from-to)	168-186
Number of pages	19
Journal	Engineering Fracture Mechanics
Volume	135
DOIs	https://doi.org/10.1016/j.engfracmech.2015.01.003
Publication status	Published - Feb 1 2015

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.engfracmech.2015.01.003

Fingerprint Dive into the research topics of 'Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model'. Together they form a unique fingerprint.

Cite this

Fukumura, N., Suzuki, T., Hamada, S., Tsuzaki, K., & Noguchi, H. (2015). Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model. Engineering Fracture Mechanics, 135, 168-186. https://doi.org/10.1016/j.engfracmech.2015.01.003

@article{66b95ac55e714a168bb6e9253b6e9ab6,

title = "Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model",

abstract = "The threshold stress intensity factor range δKth was analytically calculated under stress control conditions using the plasticity-induced crack closure analysis with the Dugdale model. Before obtaining δKth, the accuracy of the method was verified. The characteristics of the crack closure behavior were discussed by specifying the small-scale yielding (SSY) and large-scale yielding (LSY). The analysis results of δKth were discussed systematically by non-dimensionalizing them with the Dugdale model. Under the SSY condition, δKth was dependent on Young's modulus and Poisson's ratio. Under the LSY condition, δKth increased when the initial crack length or yield strain increased.",

author = "Naoki Fukumura and Tomohiro Suzuki and Shigeru Hamada and Kaneaki Tsuzaki and Hiroshi Noguchi",

year = "2015",

month = feb,

day = "1",

doi = "10.1016/j.engfracmech.2015.01.003",

language = "English",

volume = "135",

pages = "168--186",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model

AU - Fukumura, Naoki

AU - Suzuki, Tomohiro

AU - Hamada, Shigeru

AU - Tsuzaki, Kaneaki

AU - Noguchi, Hiroshi

PY - 2015/2/1

Y1 - 2015/2/1

N2 - The threshold stress intensity factor range δKth was analytically calculated under stress control conditions using the plasticity-induced crack closure analysis with the Dugdale model. Before obtaining δKth, the accuracy of the method was verified. The characteristics of the crack closure behavior were discussed by specifying the small-scale yielding (SSY) and large-scale yielding (LSY). The analysis results of δKth were discussed systematically by non-dimensionalizing them with the Dugdale model. Under the SSY condition, δKth was dependent on Young's modulus and Poisson's ratio. Under the LSY condition, δKth increased when the initial crack length or yield strain increased.

AB - The threshold stress intensity factor range δKth was analytically calculated under stress control conditions using the plasticity-induced crack closure analysis with the Dugdale model. Before obtaining δKth, the accuracy of the method was verified. The characteristics of the crack closure behavior were discussed by specifying the small-scale yielding (SSY) and large-scale yielding (LSY). The analysis results of δKth were discussed systematically by non-dimensionalizing them with the Dugdale model. Under the SSY condition, δKth was dependent on Young's modulus and Poisson's ratio. Under the LSY condition, δKth increased when the initial crack length or yield strain increased.

UR - http://www.scopus.com/inward/record.url?scp=85027918238&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027918238&partnerID=8YFLogxK

U2 - 10.1016/j.engfracmech.2015.01.003

DO - 10.1016/j.engfracmech.2015.01.003

M3 - Article

AN - SCOPUS:85027918238

VL - 135

SP - 168

EP - 186

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 0013-7944

ER -