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Fatigue life estimates for a notched member in a corrosive environment

Journal Article · · J. Pressure Vessel Technol.; (United States)
DOI:https://doi.org/10.1115/1.3264845· OSTI ID:6523498
It is often assumed that the effects of an aggressive environment can be included in fatigue life estimation procedures by determining the material properties in the environment and at the frequency of interest. An analytical and experimental program was conducted to confirm or refute this assumption. Automotive grade aluminum alloy, 5454-H32, in 3 percent NaCl solution and laboratory environment was selected for this study. A simple model where the total fatigue life is the summation of the portion where fatigue damage is best described by the notch strain field, and the portion where nominal stress and crack length dominate damage assessment, was used to estimate fatigue lives for center notched plates. Smooth cylindrical specimens were employed to determine the material properties for initiation.
Research Organization:
Dept. of Mechanical and Industrial Engineering, Univ. of Illinois at Urbana-Champaign, Urbana, IL 61801
OSTI ID:
6523498
Journal Information:
J. Pressure Vessel Technol.; (United States), Journal Name: J. Pressure Vessel Technol.; (United States) Vol. 109:1; ISSN JPVTA
Country of Publication:
United States
Language:
English