Masters Theses

Abstract

"The purpose of this study is to determine the effect of the plastic deformations on the grain boundaries and the grain structure of mild steel. Five beams tested were of A-36 steel and of 6 WF 20 rolled section. Central loading was used to develop a plastic tinge at the cent1:1r.

At the center, where a plastic hinge was formed, the effect of the plastic deformations on the grain structure was severe in all the samples taken from the tension side of all plastically or partially plastically loaded beams. In fully plastically loaded beams this effect had spread on both sides of the centerline but was absent in partially plastically loaded beams.

All samples taken from the compression side did not show any apparent. change in the structure of the steel.

Under the plastic loading, the grains in the zones of a plastic hinge were not deformed either by slip or by twinning, as the slip lines and the twin bands were absent in all the samples that WP-re observed.

In Beam No. 5, which was loaded only to the elastic stage., no deformations were observed in the grain structure of the steel"--Abstract, p. ii

Advisor(s)

Spooner, James E.

Committee Member(s)

Senne, Joseph H.
Schaefer, Rodney A., 1926-2002
Scofield, Gordan L., 1925-1986

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

University of Missouri at Rolla

Publication Date

1964

Pagination

vii, 55 pages

Note about bibliography

Includes bibliographical references (pages 53-54)

Rights

© 1964 Jayendra Jamnadas Shah, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1676

Print OCLC #

5963513

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