Doctoral Dissertations

Abstract

"A method utilizing high pressure fluid environments is described whereby a three-dimensional subsequent yield surface was determined for 304 stainless steel. Cylindrical parent specimens of this material were prestrained in axial compression under fluid pressure and then small sub-specimens were sectioned from these parent specimens. Finite element techniques were used to optimize the parent specimen size so that a zone of uniform axial stress would result during the prestraining. Longitudinal strains in this zone were monitored during the prestraining and the sub-specimens were cut from this region in a manner that did not allow the machining to appreciably affect the properties of the specimens. Following this, conventional tension and compression tests were performed on the subspecimens in various fluid pressure environments to determine the yield strengths for the prestrained material in the directions of the principal axis of prestrain and the two transverse axes. These data are used to construct the subsequent yield surface"--Abstract, page ii.

Advisor(s)

Davis, Robert L.

Committee Member(s)

Rocke, R. D. (Richard Dale), 1938-
Lehnhoff, T. F., 1939-
Oetting, R. B.
Pagano, Sylvester J., 1924-2006
Faucett, T. R.

Department(s)

Mechanical and Aerospace Engineering

Degree Name

Ph. D. in Mechanical Engineering

Sponsor(s)

National Science Foundation (U.S.)

Publisher

University of Missouri--Rolla

Publication Date

1971

Pagination

vi, 79 pages

Note about bibliography

Includes bibliographical references (pages 77-78).

Rights

© 1971 Joseph George Hoeg, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Subject Headings

Yield surfaces -- Testing
Yield surfaces -- Mathematical models
Materials at high pressures
Strength of materials
Thin-walled structures -- Fatigue
Austenitic stainless steel -- Fatigue

Thesis Number

T 2417

Print OCLC #

6024224

Electronic OCLC #

859265375

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