A study of notch fatigue.  Part III, plastic stress analysis of notches
By: Gerald H. Lindsey
Contributors: Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1981
Place of publication: Monterey, Calif
Language: eng
Number of pages: 55
Subjects: Residual stresses; Photoelasticity; Fracture mechanics; Stress concentration
Description: The stress and strain behavior at notch tips is analyzed with the view of using local values for fatigue calculations. A perfectly plastic, closed form solution is used as a starting point and basis of comparison for the finite element analysis. Maximum stress and strain values for 7075-T6 aluminum were obtained via finite elements and reflection photoelasticity in the plastic zone, and residual stress and strain values after unloading were obtained as well. A uniaxial model was used successfully to predict most of the behavior observed. (Author)
Notes: "NPS-67-81-006."

Cover title.

"September 1981."

"Prepared for: Naval Air Systems Command; Washington, DC 20361."

Includes bibliographical references (p. 54)

"Approved for public release; distribution is unlimited."

Technical report; 1981.