Waterjet peening is a recent promising method in surface treatment. It has the potential to induce compressive residual stresses that benefit the fatigue life of materials similar to the conventional shot peening process. However, there are no analytical models that incorporate process parameters (i.e., supply pressure, jet exposure time, and nozzle traverse rate, etc) to allow predicting the optimized peening process. Mathematical modeling of high-pressure waterjet peening was developed in this study to describe the relation between the waterjet peening parameters and the resulting material modifications. Results showed the possibility of using the proposed mathematical model to predict an initial range for effective waterjet peening under the variation of waterjet peening conditions. The high cycle fatigue tests were performed to validate the proposed model and fatigue test results showed good agreement with the predictions.
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April 2005
Article
Mathematical Modeling of Ultra-High-Pressure Waterjet Peening
S. Kunaporn,
S. Kunaporn
Walailuk University, Nakhonsithammarat, Thailand
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M. Ramulu, ASME Fellow,
M. Ramulu, ASME Fellow
University of Washington, Seattle, WA 98195
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M. Hashish, ASME Fellow
M. Hashish, ASME Fellow
Flow International, Kent, WA 98032
Search for other works by this author on:
S. Kunaporn
Walailuk University, Nakhonsithammarat, Thailand
M. Ramulu, ASME Fellow
University of Washington, Seattle, WA 98195
M. Hashish, ASME Fellow
Flow International, Kent, WA 98032
Manuscript received October 6, 2003; revision received November 7, 2004. Review conducted by: N. Chandra.
J. Eng. Mater. Technol. Apr 2005, 127(2): 186-191 (6 pages)
Published Online: April 6, 2005
Article history
Received:
October 6, 2003
Revised:
November 7, 2004
Online:
April 6, 2005
Citation
Kunaporn, S., Ramulu, M., and Hashish, M. (April 6, 2005). "Mathematical Modeling of Ultra-High-Pressure Waterjet Peening ." ASME. J. Eng. Mater. Technol. April 2005; 127(2): 186–191. https://doi.org/10.1115/1.1857934
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