Naval Postgraduate School
An investigation of methods for determining notch root stress from far field strain in notched flat plates.
investigationofm00gars.pdf (5.770Mb)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.
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