Masters Theses

Vijay Rastogi

Abstract

"In this investigation an attempt has been made to determine simple formulae leading to a better, more useful and much safer design of flange coupling bolts. The bolts were tested under tensile loading and bending and hence the results obtained apply for bolts under these modes of loading only.

The behavior of flange bolts under different initial tightening torques was studied by measuring strains in a bolt on which strain gages had been attached* . From this, the load producing separation of flanges, under different tightening torques, was determined and used in deriving formulae for prediction of the load for the separation of flanges, under different tightening torques, and the final stresses in the bolts.

The constants in the formulae vary with the following factors:
(i) Initial tightening torques on the bolts
(ii) Thickness of flange
(iii) Number of bolts
(iv) Diameter of flange
(v) Diameter of bolts
(vi) Types of washers
(vii) Material of gasket
(viii) Thickness of the gasket

A complete investigation of the problem of a flange coupling using bolts would be, therefore, extremely lengthy. The author has investigated the problem with respect to the first two factors and it is his hope that on the basis of this thesis, attempts will be made in the future to investigate the other factors involved.

*Hereafter this bolt will be referred to as the 'instrumented bolt'"--Abstract, pages 2-3.

Advisor(s)

Faucett, T. R.

Committee Member(s)

Miles, Aaron J.
Schaefer, Rodney A., 1926-2002
Jones, James A.

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Comments

Further research on this topic is contained in a thesis of the same name by Bansidhar Shah, found here.

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1962

Pagination

95 pages

Note about bibliography

Includes bibliographical references (page 94).

Rights

© 1962 Vijay Rastogi, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1418

Print OCLC #

5948854

Electronic OCLC #

1044756643

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