Improved crack growth corrections for J-R-curve testing

Kim Wallin (Corresponding Author), Anssi Laukkanen

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)

Abstract

The ASTM JR-curve testing standard contains an incremental crack growth correction to J, whereas the ESIS P2 test procedure contains a correction for the total crack growth. The ASTM expression is only applicable to single specimen JR-curve testing in contrast to the ESIS expression which is also applicable for multi-specimen tests. The ASTM expression is, however, considered to be more accurate than the ESIS expression. It is of interest to unify the test procedures so that irrespective of standard, the same result would be obtained. Having this goal in mind, the different crack growth corrections have been examined and compared both with each other as well as with other analytical and numerical estimates, applicable both in incremental as well as integral form. As a result a new correction is proposed, which is capable of unifying the different testing standards.
Original languageEnglish
Pages (from-to)1601 - 1614
Number of pages14
JournalEngineering Fracture Mechanics
Volume71
Issue number11
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

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Crack propagation
Testing

Keywords

  • crack growth
  • crack growth rate
  • fatique
  • ProperTune

Cite this

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title = "Improved crack growth corrections for J-R-curve testing",
abstract = "The ASTM J–R-curve testing standard contains an incremental crack growth correction to J, whereas the ESIS P2 test procedure contains a correction for the total crack growth. The ASTM expression is only applicable to single specimen J–R-curve testing in contrast to the ESIS expression which is also applicable for multi-specimen tests. The ASTM expression is, however, considered to be more accurate than the ESIS expression. It is of interest to unify the test procedures so that irrespective of standard, the same result would be obtained. Having this goal in mind, the different crack growth corrections have been examined and compared both with each other as well as with other analytical and numerical estimates, applicable both in incremental as well as integral form. As a result a new correction is proposed, which is capable of unifying the different testing standards.",
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Improved crack growth corrections for J-R-curve testing. / Wallin, Kim (Corresponding Author); Laukkanen, Anssi.

In: Engineering Fracture Mechanics, Vol. 71, No. 11, 2004, p. 1601 - 1614.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Wallin, Kim

AU - Laukkanen, Anssi

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AB - The ASTM J–R-curve testing standard contains an incremental crack growth correction to J, whereas the ESIS P2 test procedure contains a correction for the total crack growth. The ASTM expression is only applicable to single specimen J–R-curve testing in contrast to the ESIS expression which is also applicable for multi-specimen tests. The ASTM expression is, however, considered to be more accurate than the ESIS expression. It is of interest to unify the test procedures so that irrespective of standard, the same result would be obtained. Having this goal in mind, the different crack growth corrections have been examined and compared both with each other as well as with other analytical and numerical estimates, applicable both in incremental as well as integral form. As a result a new correction is proposed, which is capable of unifying the different testing standards.

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KW - crack growth rate

KW - fatique

KW - ProperTune

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