Initiation and propagation life distributions of fatigue cracks and the life evaluation in high cycle fatigue of ADI

Yasuo Ochi, Tomohisa Ogata, Masanobu Kubota, Akira Ishii

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Rotating bending fatigue tests were carried out on austempered ductile cast iron (ADI) in order to investigate the statistical properties of life distributions of crack initiation and propagation, and also the evaluation of fatigue life. The results are summarized as follows: (1) The size of crack initiation sites of the material was represented by a Weibull distribution without regarding to the kinds of crack initiation sites such as microshrinkage and graphite grain. The crack initiation life scattered widely, but the scatter became much smaller as soon as the cracks grew. (2) The crack propagation life Nac which was defined as the minimum crack propagation rate showed lower scatter than the crack initation life. (3) The fatigue life of the material was evaluated well by Nac and the propagation rate after Nac. It was clear that the fatigue life of ductile cast iron was goverened by the scatter of Nac.

Original languageEnglish
Pages (from-to)1155-1160
Number of pages6
JournalZairyo/Journal of the Society of Materials Science, Japan
Volume46
Issue number10
DOIs
Publication statusPublished - Jan 1 1997

Fingerprint

crack initiation
Cast iron
Crack initiation
casts
fatigue life
crack propagation
cracks
Fatigue of materials
iron
Crack propagation
cycles
propagation
evaluation
bending fatigue
Cracks
Bending (deformation)
fatigue tests
Graphite
Weibull distribution
graphite

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Initiation and propagation life distributions of fatigue cracks and the life evaluation in high cycle fatigue of ADI. / Ochi, Yasuo; Ogata, Tomohisa; Kubota, Masanobu; Ishii, Akira.

In: Zairyo/Journal of the Society of Materials Science, Japan, Vol. 46, No. 10, 01.01.1997, p. 1155-1160.

Research output: Contribution to journalArticle

@article{d0079b28dc2a4611b6e77db2d592c51a,
title = "Initiation and propagation life distributions of fatigue cracks and the life evaluation in high cycle fatigue of ADI",
abstract = "Rotating bending fatigue tests were carried out on austempered ductile cast iron (ADI) in order to investigate the statistical properties of life distributions of crack initiation and propagation, and also the evaluation of fatigue life. The results are summarized as follows: (1) The size of crack initiation sites of the material was represented by a Weibull distribution without regarding to the kinds of crack initiation sites such as microshrinkage and graphite grain. The crack initiation life scattered widely, but the scatter became much smaller as soon as the cracks grew. (2) The crack propagation life Nac which was defined as the minimum crack propagation rate showed lower scatter than the crack initation life. (3) The fatigue life of the material was evaluated well by Nac and the propagation rate after Nac. It was clear that the fatigue life of ductile cast iron was goverened by the scatter of Nac.",
author = "Yasuo Ochi and Tomohisa Ogata and Masanobu Kubota and Akira Ishii",
year = "1997",
month = "1",
day = "1",
doi = "10.2472/jsms.46.1155",
language = "English",
volume = "46",
pages = "1155--1160",
journal = "Zairyo/Journal of the Society of Materials Science, Japan",
issn = "0514-5163",
publisher = "公益社団法人 日本材料学会",
number = "10",

}

TY - JOUR

T1 - Initiation and propagation life distributions of fatigue cracks and the life evaluation in high cycle fatigue of ADI

AU - Ochi, Yasuo

AU - Ogata, Tomohisa

AU - Kubota, Masanobu

AU - Ishii, Akira

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Rotating bending fatigue tests were carried out on austempered ductile cast iron (ADI) in order to investigate the statistical properties of life distributions of crack initiation and propagation, and also the evaluation of fatigue life. The results are summarized as follows: (1) The size of crack initiation sites of the material was represented by a Weibull distribution without regarding to the kinds of crack initiation sites such as microshrinkage and graphite grain. The crack initiation life scattered widely, but the scatter became much smaller as soon as the cracks grew. (2) The crack propagation life Nac which was defined as the minimum crack propagation rate showed lower scatter than the crack initation life. (3) The fatigue life of the material was evaluated well by Nac and the propagation rate after Nac. It was clear that the fatigue life of ductile cast iron was goverened by the scatter of Nac.

AB - Rotating bending fatigue tests were carried out on austempered ductile cast iron (ADI) in order to investigate the statistical properties of life distributions of crack initiation and propagation, and also the evaluation of fatigue life. The results are summarized as follows: (1) The size of crack initiation sites of the material was represented by a Weibull distribution without regarding to the kinds of crack initiation sites such as microshrinkage and graphite grain. The crack initiation life scattered widely, but the scatter became much smaller as soon as the cracks grew. (2) The crack propagation life Nac which was defined as the minimum crack propagation rate showed lower scatter than the crack initation life. (3) The fatigue life of the material was evaluated well by Nac and the propagation rate after Nac. It was clear that the fatigue life of ductile cast iron was goverened by the scatter of Nac.

UR - http://www.scopus.com/inward/record.url?scp=0031249962&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031249962&partnerID=8YFLogxK

U2 - 10.2472/jsms.46.1155

DO - 10.2472/jsms.46.1155

M3 - Article

VL - 46

SP - 1155

EP - 1160

JO - Zairyo/Journal of the Society of Materials Science, Japan

JF - Zairyo/Journal of the Society of Materials Science, Japan

SN - 0514-5163

IS - 10

ER -