ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A 3D finite element model is established to simulate the ultrasonic shot peening processby using a finite element software ABAQUS. The residual stress distribution of the AISI 304stainless steel induced by ultrasonic shot peening (USP) is predicted by finite element analysis.Ultrasonic shot peening (USP) process can cause a compressive residual stress layer on the surfaceof the material. During the simulation, many factors, e.g., ultrasonic shot peening duration, initialresidual stress, hourglass, etc., are taken into consideration for the purpose of optimizing the process.The simulation results show that ultrasonic shot peening can produce a compressive residual stresslayer on the surface of the material even if there is initial residual tensile stress (250MPa) and thelonger peening duration. The residual stress of simulation were compared with the experiment datawhich were obtained under the same ultrasonic shot peening parameters and have a good agreementwith the measurement values by X-ray diffraction method. In conclusion, ultrasonic shot peening isan effective method for protecting weldments against stress corrosion cracking by introducing thecompressive residual stress layer into the surface of stainless steel
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.373-374.832.pdf
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