A modified experimental method using digital image correlation (DIC), a noncontact optical method for measuring full-field displacements and strains, is used to interrogate accumulated fatigue damage for low and high cycle fatigue at continuum scales. Previous energy-based fatigue life prediction methods have shown that cyclic strain energy dissipated during fatigue acts as a key damage parameter for accurate determination of total and remaining fatigue life. DIC enables the collection of accurate strain energy measurements or damaging energy of complex geometries that would otherwise be exceedingly difficult and time consuming using traditional strain measurement techniques. Thus, the use of DIC to obtain strain energy measurements of gas turbine engine (GTE) components is highly advantageous for energy-based fatigue life prediction methods. Presented in this study is the experimental characterization of the cyclic strain energy dissipation as a means of predicting fatigue performance and assessment of damage progression of Aluminum 6061 subjected to fully reversed axial fatigue loading utilizing DIC. Validation of total and cyclic strain energy dissipation DIC measurements is accomplished with the simultaneous use of axial extensometery for direct comparison and implementation to strain energy-based life prediction methods.
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September 2019
Research-Article
Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy-Based Fatigue Life Prediction
Dino Celli,
Dino Celli
Mem. ASME
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: celli.6@osu.edu
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: celli.6@osu.edu
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M.-H. Herman Shen,
M.-H. Herman Shen
Fellow ASME
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: shen.1@osu.edu
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: shen.1@osu.edu
1Corresponding author.
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Casey Holycross,
Casey Holycross
Mem. ASME
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: casey.holyrcross@us.af.mil
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: casey.holyrcross@us.af.mil
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Onome Scott-Emuakpor,
Onome Scott-Emuakpor
Mem. ASME
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: onome.scott-emuakpor.1@us.af.mil
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: onome.scott-emuakpor.1@us.af.mil
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Tommy George
Tommy George
Mem. ASME
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: tommy.george@us.af.mil
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: tommy.george@us.af.mil
Search for other works by this author on:
Dino Celli
Mem. ASME
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: celli.6@osu.edu
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: celli.6@osu.edu
M.-H. Herman Shen
Fellow ASME
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: shen.1@osu.edu
Department of Mechanical and
Aerospace Engineering,
The Ohio State University,
201 West 19th Avenue,
Columbus, OH 43210
e-mail: shen.1@osu.edu
Casey Holycross
Mem. ASME
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: casey.holyrcross@us.af.mil
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: casey.holyrcross@us.af.mil
Onome Scott-Emuakpor
Mem. ASME
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: onome.scott-emuakpor.1@us.af.mil
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: onome.scott-emuakpor.1@us.af.mil
Tommy George
Mem. ASME
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: tommy.george@us.af.mil
Air Force Research Laboratory,
Aerospace Systems Directorate,
Wright-Patterson AFB, OH 45433
e-mail: tommy.george@us.af.mil
1Corresponding author.
Manuscript received July 5, 2018; final manuscript received July 3, 2019; published online July 22, 2019. Editor: Jerzy T. Sawicki. This work is in part a work of the U.S. Government. ASME disclaims all interest in the U.S. Government's contributions.
J. Eng. Gas Turbines Power. Sep 2019, 141(9): 091018 (9 pages)
Published Online: July 22, 2019
Article history
Received:
July 5, 2018
Revised:
July 3, 2019
Citation
Celli, D., Herman Shen, M., Holycross, C., Scott-Emuakpor, O., and George, T. (July 22, 2019). "Measurement of Hysteresis Energy Using Digital Image Correlation With Application to Energy-Based Fatigue Life Prediction." ASME. J. Eng. Gas Turbines Power. September 2019; 141(9): 091018. https://doi.org/10.1115/1.4044202
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