Masters Theses

Abstract

"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.

Advisor(s)

Hansen, Peter G., 1927-2010

Committee Member(s)

Hornsey, Edward
Lehnhoff, T. F., 1939-

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Engineering Mechanics

Publisher

University of Missouri--Rolla

Publication Date

1972

Pagination

xi, 82 pages

Note about bibliography

Includes bibliographical references (pages 59-60).

Rights

© 1972 Glenn Michael Kmecz, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Strains and stresses -- Mathematical modelsThermal stresses -- Mathematical modelsStress concentration -- Mathematical modelsPhotoelasticity

Thesis Number

T 2825

Print OCLC #

6027486

Electronic OCLC #

904439632

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