Masters Theses

Abstract

"A computer program has been developed to study the behavior of plane stress structures under cyclic loading. Such phenomena as thermal ratcheting, alternate plasticity, shake-down and the Bauschinger effect may be considered. The incremental theory of plasticity has been used. The program deals with realistic conditions such as nonlinear strain hardening, nonlinear temperature distribution and occurrence of both compressive and tensile plastic flow. The concept of an average material property has been used. Thermal ratcheting of a beam subjected to a constant bending moment and a temperature cycle has been studied in detail. The analysis shows analytically that the rate of plastic strain growth reduces with an increase in the number of loading cycles. Applications of the computer program have been discussed. Further, the thermal ratcheting of a two bar model has been discussed considering the simplifying assumptions of linear strain hardening and the absence of compressive plastic flow"--Abstract, page ii.

Advisor(s)

Lehnhoff, T. F., 1939-

Committee Member(s)

Davis, Robert L.
Keith, Harold D. (Harold Dean), 1941-

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Publisher

University of Missouri--Rolla

Publication Date

1970

Pagination

xiv, 123 pages

Note about bibliography

Includes bibliographical references (pages 144-147).

Rights

© 1970 Rameshchandra Chandulal Hazariwala, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Plasticity -- Computer programs
Materials -- Fatigue -- Computer simulation
Strains and stresses -- Mathematical models

Thesis Number

T 2490

Print OCLC #

6029343

Electronic OCLC #

869880717

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