Measurement of crack growth and strain distribution around crack tip under elevated temperature

Tatsuhiko Aizawa; Genki Yagawa; Yoshio Ando; Katsuhiko Sakaue; Mikio Takagi

doi:10.1117/12.957570

Measurement of crack growth and strain distribution around crack tip under elevated temperature

Tatsuhiko Aizawa, Genki Yagawa, Yoshio Ando, Katsuhiko Sakaue, Mikio Takagi

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

Abstract

Through the macroscopic measurement of crack growth under the elevated temperature, the crack propagation rate has been found to be in better correlation with the J contour integral value than with other candidate parameters e.g. elastic stress intensity factor, net section stress. In order that this J value may be defined under the stationary creep condition, we must be aware of a certain singular strain field around the crack tip, which has been theoretically analyzed but the existence of which is not recognized experimentally. Using the Moire topographical method and digital processing of raw Moire grids and fringe patterns, the interesting informations have been obtained regarding the strain concentration at the crack tip.

Original language	English
Pages (from-to)	281-284
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	189
DOIs	https://doi.org/10.1117/12.957570
Publication status	Published - 1979 Jul 27
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.957570

Cite this

@article{a9c5d401e944445eb1affb2368b58ea8,

title = "Measurement of crack growth and strain distribution around crack tip under elevated temperature",

abstract = "Through the macroscopic measurement of crack growth under the elevated temperature, the crack propagation rate has been found to be in better correlation with the J contour integral value than with other candidate parameters e.g. elastic stress intensity factor, net section stress. In order that this J value may be defined under the stationary creep condition, we must be aware of a certain singular strain field around the crack tip, which has been theoretically analyzed but the existence of which is not recognized experimentally. Using the Moire topographical method and digital processing of raw Moire grids and fringe patterns, the interesting informations have been obtained regarding the strain concentration at the crack tip.",

author = "Tatsuhiko Aizawa and Genki Yagawa and Yoshio Ando and Katsuhiko Sakaue and Mikio Takagi",

year = "1979",

month = jul,

day = "27",

doi = "10.1117/12.957570",

language = "English",

volume = "189",

pages = "281--284",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

}

TY - JOUR

T1 - Measurement of crack growth and strain distribution around crack tip under elevated temperature

AU - Aizawa, Tatsuhiko

AU - Yagawa, Genki

AU - Ando, Yoshio

AU - Sakaue, Katsuhiko

AU - Takagi, Mikio

PY - 1979/7/27

Y1 - 1979/7/27

N2 - Through the macroscopic measurement of crack growth under the elevated temperature, the crack propagation rate has been found to be in better correlation with the J contour integral value than with other candidate parameters e.g. elastic stress intensity factor, net section stress. In order that this J value may be defined under the stationary creep condition, we must be aware of a certain singular strain field around the crack tip, which has been theoretically analyzed but the existence of which is not recognized experimentally. Using the Moire topographical method and digital processing of raw Moire grids and fringe patterns, the interesting informations have been obtained regarding the strain concentration at the crack tip.

AB - Through the macroscopic measurement of crack growth under the elevated temperature, the crack propagation rate has been found to be in better correlation with the J contour integral value than with other candidate parameters e.g. elastic stress intensity factor, net section stress. In order that this J value may be defined under the stationary creep condition, we must be aware of a certain singular strain field around the crack tip, which has been theoretically analyzed but the existence of which is not recognized experimentally. Using the Moire topographical method and digital processing of raw Moire grids and fringe patterns, the interesting informations have been obtained regarding the strain concentration at the crack tip.

UR - http://www.scopus.com/inward/record.url?scp=84957468220&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84957468220&partnerID=8YFLogxK

U2 - 10.1117/12.957570

DO - 10.1117/12.957570

M3 - Article

AN - SCOPUS:84957468220

SN - 0277-786X

VL - 189

SP - 281

EP - 284

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

ER -

Measurement of crack growth and strain distribution around crack tip under elevated temperature

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this