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STUDY OF FATIGUE CRACK PROPAGATION ON METALS USING ACOUSTIC EMISSION AND ELECTRIC RESISTIVITY IN CORRELATION WITH DIGITAL IMAGE CORRELATION

Shrestha, Sulochana, Shrestha
http://rave.ohiolink.edu/etdc/view?acc_num=akron1525705916102737

Abstract Details

2018, Master of Science in Engineering, University of Akron, Mechanical Engineering.
Fatigue damage of metal structures has always been a safety issue as fatigue cracks occur at a lower stress than design stress. Timely identifi cation of the damage is important to assure the safety operation. Therefore, using Non-Destructive Technique approaches such as acoustic emission and electrical resistivity to detect these damage initiation in metals are important. This thesis provides the results on the study of fatigue crack propagation of metals using Modal Acoustic Emission (MAE) along with Electrical Resistance (ER) and Digital Image Correlation (DIC) on test specimens with an edge notch subjected to fatigue. It was demonstrated that there exists a correlation between the acoustic emission events, potential drop along with DIC images during the fatigue cycles in predicting the failure of the given material before it actually occurs. It is anticipated that these Non-Destructive testing methods can be utilized as an efficient approach to inspect and monitor fatigued damaged structures.
Gregory Morscher (Advisor)
Manigandan Kannan (Committee Member)
Mechanical Engineering

Recommended Citations

Citations

  • Shrestha, Shrestha, S. (2018). STUDY OF FATIGUE CRACK PROPAGATION ON METALS USING ACOUSTIC EMISSION AND ELECTRIC RESISTIVITY IN CORRELATION WITH DIGITAL IMAGE CORRELATION [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525705916102737

    APA Style (7th edition)

  • Shrestha, Shrestha, Sulochana. STUDY OF FATIGUE CRACK PROPAGATION ON METALS USING ACOUSTIC EMISSION AND ELECTRIC RESISTIVITY IN CORRELATION WITH DIGITAL IMAGE CORRELATION. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1525705916102737.

    MLA Style (8th edition)

  • Shrestha, Shrestha, Sulochana. "STUDY OF FATIGUE CRACK PROPAGATION ON METALS USING ACOUSTIC EMISSION AND ELECTRIC RESISTIVITY IN CORRELATION WITH DIGITAL IMAGE CORRELATION." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525705916102737

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Akron and OhioLINK.