An investigation of methods for determining notch root stress from far field strain in notched flat plates.
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Authors
Garske, John Charles
Subjects
stress concentration factors
finite element analysis
notch root stress
Neuber's equation
finite element analysis
notch root stress
Neuber's equation
Advisors
Lindsey, G.H.
Date of Issue
1977-09
Date
September 1977
Publisher
Monterey, California: Naval Postgraduate School
Language
en_US
Abstract
Notched flat plate specimens have been tested to examine
Neuber's equation and other relations with respect to their
application in the determination of stresses in the plastic
range at the notch root when the far field strain is known.
A nonlinear finite element solution has also been obtained
for notched flat plates in plane stress to facilitate an
evaluation of it as an analytical method for calculating the
behavior of stresses at the notch root.
Experimental results indicate that Neuber's equation is
ten to twenty- five percent in error for the notch geometry,
strain level and material behavior encountered in the present
study. Finite element analysis results were in close agreement
with experimental results.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
99 p.;cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.