Numerical Verification Of The Bridgman Model
For Notched And Unnotched Round Specimens
Author(s)
G. La Rosa, G. Mirone, A. Risitano & G. Pine
Abstract
The aim of this work is to evaluate the accuracy of the Bridgman model for
stress distributions on the neck of a cylindrical bar, and to compare its results
with the corresponding values obtained using finite element analysis. The
application of Bridgman's laws to an experimental data set allowed the definition
of a constitutive curve, adopted as input for the FE models. Some of the
numerical results obtained were compared with the corresponding experimental
data, other FEM results were compared to the Bridgman prediction applied to the
same experimental data. By this comparative analysis it was possible to evidence
that a part of the experimental-numerical disagreement was due to the difficulty
of taking damage
Keywords
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