"Hole drilling as a method for improving the toughness of notch weakened tensile specimens is investigated by means of a photoelastic technique. Tests were performed on 20%, 40%, 60%, and 80% notch depth specimens machined from PSM-1 photoelastic material. The basic criteria for success was no increase in the elastic stress concentration factor. The photoelastic results were verified by a finite element stress analysis of the 60% notch depth specimens. Comparison of the experimental and numerical results provide conclusive proof that no increase in the elastic stress concentration factor occurs when proper positioning of the drilled holes is accomplished"--Abstract, page ii.
Hansen, Peter G., 1927-2010
Lehnhoff, T. F., 1939-
Mechanical and Aerospace Engineering
M.S. in Engineering Mechanics
University of Missouri--Rolla
xi, 82 pages
© 1972 Glenn Michael Kmecz, All rights reserved.
Thesis - Open Access
Strains and stresses -- Mathematical models
Thermal stresses -- Mathematical models
Stress concentration -- Mathematical models
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Kmecz, Glenn Michael, "A study of the effect of drilled holes on the concentration of elastic stresses around a notch" (1972). Masters Theses. 3541.