A method for evaluating the fatigue crack growth in spiral notch torsion fracture toughness test
Abstract
The spiral notch torsion test (SNTT) has been a recent breakthrough in measuring fracture toughness for different materials, including metals, ceramics, concrete, and polymers composites. Due to its high geometry constraint and unique loading condition, SNTT can be used to measure the fracture toughness with smaller specimens without concern of size effects. The application of SNTT to brittle materials has been proved to be successful. The micro-cracks induced by original notches in brittle materials could ensure crack growth in SNTT samples. Therefore, no fatigue pre-cracks are needed. The application of SNTT to the ductile material to generate valid toughness data will require a test sample with sufficient crack length. Fatigue pre-crack growth techniques are employed to introduce sharp crack front into the sample. Previously, only rough calculations were applied to estimate the compliance evolution in the SNTT crack growth process, while accurate quantitative descriptions have never been attempted. This generates an urgent need to understand the crack evolution during the SNTT fracture testing process of ductile materials. Here, the newly developed governing equations for SNTT crack growth estimate are discussed in the paper.
- Authors:
-
[1];
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Vermont, Burlington, VT (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1439941
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Archive of Applied Mechanics (1991)
- Additional Journal Information:
- Journal Name: Archive of Applied Mechanics (1991); Journal Volume: Special; Journal ID: ISSN 0939-1533
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Spiral notch torsion test; Fracture toughness; Fatigue pre-crack
Citation Formats
Wang, Jy -An John, and Tan, Ting. A method for evaluating the fatigue crack growth in spiral notch torsion fracture toughness test. United States: N. p., 2018.
Web. doi:10.1007/s00419-018-1398-2.
Wang, Jy -An John, & Tan, Ting. A method for evaluating the fatigue crack growth in spiral notch torsion fracture toughness test. United States. https://doi.org/10.1007/s00419-018-1398-2
Wang, Jy -An John, and Tan, Ting. Mon .
"A method for evaluating the fatigue crack growth in spiral notch torsion fracture toughness test". United States. https://doi.org/10.1007/s00419-018-1398-2. https://www.osti.gov/servlets/purl/1439941.
@article{osti_1439941,
title = {A method for evaluating the fatigue crack growth in spiral notch torsion fracture toughness test},
author = {Wang, Jy -An John and Tan, Ting},
abstractNote = {The spiral notch torsion test (SNTT) has been a recent breakthrough in measuring fracture toughness for different materials, including metals, ceramics, concrete, and polymers composites. Due to its high geometry constraint and unique loading condition, SNTT can be used to measure the fracture toughness with smaller specimens without concern of size effects. The application of SNTT to brittle materials has been proved to be successful. The micro-cracks induced by original notches in brittle materials could ensure crack growth in SNTT samples. Therefore, no fatigue pre-cracks are needed. The application of SNTT to the ductile material to generate valid toughness data will require a test sample with sufficient crack length. Fatigue pre-crack growth techniques are employed to introduce sharp crack front into the sample. Previously, only rough calculations were applied to estimate the compliance evolution in the SNTT crack growth process, while accurate quantitative descriptions have never been attempted. This generates an urgent need to understand the crack evolution during the SNTT fracture testing process of ductile materials. Here, the newly developed governing equations for SNTT crack growth estimate are discussed in the paper.},
doi = {10.1007/s00419-018-1398-2},
journal = {Archive of Applied Mechanics (1991)},
number = ,
volume = Special,
place = {United States},
year = {Mon May 21 00:00:00 EDT 2018},
month = {Mon May 21 00:00:00 EDT 2018}
}
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Cited by: 5 works
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Figures / Tables:
Fig. 1: SNTT configuration.
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Works referenced in this record:
A New Approach to Evaluate Fracture Toughness of Structural Materials
journal, November 2004
- Wang, J. A.; Liu, K. C.
- Journal of Pressure Vessel Technology, Vol. 126, Issue 4
Investigating fracture behavior of polymer and polymeric composite materials using spiral notch torsion test
journal, March 2013
- Tan, Ting; Ren, Fei; Wang, John Jy-An
- Engineering Fracture Mechanics, Vol. 101
Evaluating Stress-Corrosion Cracking Susceptibility Using a Torsion Test
conference, January 2005
- Bayles, Robert A.; Singh Raman, R. K.; Knight, Steven P.
- ASME 2005 Pressure Vessels and Piping Conference, Volume 6: Materials and Fabrication
Oak Ridge National Laboratory (ORNL) spiral notch torsion test (SNTT) system
journal, August 2003
- Wang, Jy-An John
- Practical Failure Analysis, Vol. 3, Issue 4
A new test method for determining the fracture toughness of concrete materials
journal, March 2010
- Wang, John Jy-An; Liu, Ken C.; Naus, Dan
- Cement and Concrete Research, Vol. 40, Issue 3, p. 497-499
Measurement of Fracture Toughness of Materials With Non-Uniform Microstructure Based on Spiral Notch Torsion Test
conference, January 2010
- Zhang, Wei; Feng, Zhili; Wang, Jy-An
- ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B
Using torsional bar testing to determine fracture toughness
journal, November 2000
- Wang, J. A.; Liu, K. C.; McCabe, D. E.
-
Fatigue
Fracture of Engineering Materials and Structures, Vol. 23, Issue 11
Fractographic study of epoxy under mode I and mixed mode I/III loading
journal, January 2012
- Ren, Fei; Wang, John Jy-An; Bertelsen, Williams D.
- Materials Science and Engineering: A, Vol. 532
A new approach for evaluating thin film interface fracture toughness
journal, June 2006
- Wang, Jy-An John; Wright, Ian G.; Lance, Michael J.
- Materials Science and Engineering: A, Vol. 426, Issue 1-2
Interface fracture toughness evaluation for MA956 oxide film
journal, December 2005
- Wang, J. -A. J.; Wright, I. G.; Lance, M. J.
- Journal of Failure Analysis and Prevention, Vol. 5, Issue 6
The development of in situ fracture toughness evaluation techniques in hydrogen environment
journal, January 2015
- Wang, John Jy-An; Ren, Fei; Tan, Tin
- International Journal of Hydrogen Energy, Vol. 40, Issue 4
An innovative technique for evaluating fracture toughness of graphite materials
journal, October 2008
- Wang, Jy-An John; Liu, Ken C.
- Journal of Nuclear Materials, Vol. 381, Issue 1-2
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.