Analysis of experimental factors in elastic-plastic small specimen mixed-mode I-II fracture mechanical testing

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9 Citations (Scopus)

Abstract

The quality of experimental fracture resistance testing results in mixed‐mode I‐II loading is more than questionable in several cases. This study describes efforts to gain consistent results with respect to mixed‐mode I‐II fracture resistance curve determination when working with elastic–plastic materials. The entire mixed‐mode I‐II field is evaluated, i.e. both numerical and experimental factors are considered the focus being on the asymmetric four‐point bend set‐up. Several error prone features are presented, and minimization of their effects on quantitative fracture resistance assessment considered. The results indicate that through a careful evaluation of the stages in experimental testing and numerical analysis valid, material characterizing, fracture toughness results can be obtained.
Original languageEnglish
Pages (from-to)193-206
Number of pages14
JournalFatigue & Fracture of Engineering Materials & Structures
Volume24
Issue number3
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

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Fracture testing
Mechanical testing
Fracture toughness
Plastics
Testing
Numerical analysis

Keywords

  • ductile fracture
  • mixed-mode I-II
  • mode II
  • toughness testing
  • ProperTune

Cite this

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title = "Analysis of experimental factors in elastic-plastic small specimen mixed-mode I-II fracture mechanical testing",
abstract = "The quality of experimental fracture resistance testing results in mixed‐mode I‐II loading is more than questionable in several cases. This study describes efforts to gain consistent results with respect to mixed‐mode I‐II fracture resistance curve determination when working with elastic–plastic materials. The entire mixed‐mode I‐II field is evaluated, i.e. both numerical and experimental factors are considered the focus being on the asymmetric four‐point bend set‐up. Several error prone features are presented, and minimization of their effects on quantitative fracture resistance assessment considered. The results indicate that through a careful evaluation of the stages in experimental testing and numerical analysis valid, material characterizing, fracture toughness results can be obtained.",
keywords = "ductile fracture, mixed-mode I-II, mode II, toughness testing, ProperTune",
author = "Anssi Laukkanen",
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language = "English",
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pages = "193--206",
journal = "Fatigue & Fracture of Engineering Materials & Structures",
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Analysis of experimental factors in elastic-plastic small specimen mixed-mode I-II fracture mechanical testing. / Laukkanen, Anssi.

In: Fatigue & Fracture of Engineering Materials & Structures, Vol. 24, No. 3, 2001, p. 193-206.

Research output: Contribution to journalArticleScientificpeer-review

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PY - 2001

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AB - The quality of experimental fracture resistance testing results in mixed‐mode I‐II loading is more than questionable in several cases. This study describes efforts to gain consistent results with respect to mixed‐mode I‐II fracture resistance curve determination when working with elastic–plastic materials. The entire mixed‐mode I‐II field is evaluated, i.e. both numerical and experimental factors are considered the focus being on the asymmetric four‐point bend set‐up. Several error prone features are presented, and minimization of their effects on quantitative fracture resistance assessment considered. The results indicate that through a careful evaluation of the stages in experimental testing and numerical analysis valid, material characterizing, fracture toughness results can be obtained.

KW - ductile fracture

KW - mixed-mode I-II

KW - mode II

KW - toughness testing

KW - ProperTune

U2 - 10.1046/j.1460-2695.2001.00385.x

DO - 10.1046/j.1460-2695.2001.00385.x

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JO - Fatigue & Fracture of Engineering Materials & Structures

JF - Fatigue & Fracture of Engineering Materials & Structures

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