Submission Title

Analysis of Bending Fatigue Stress Using Strain Gage Data and Modeling Software for 2 Different Specimen Designs

Presenter Information

Daniel Barnhart, Gonzaga University

Session Number

PS1

Location

Robinson 210

Abstract Number

PS1-g

Abstract

Specimens of 304 stainless are failed in bending after a range of different gaseous hydrogen exposures. Two different specimen geometries have been tested. In order to determine the stresses on each specimen type, strain gage data and modeling software were used to estimate maximum bending stresses. The results are analyzed and used to construct stress amplitude (S) as a function of log10 Nf curves. The data in S-log Nf form may be used by future designers who predict allowable stresses for components which are subjected to fatigue loading in hydrogen environments.

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Apr 23rd, 10:45 AM Apr 23rd, 12:15 PM

Analysis of Bending Fatigue Stress Using Strain Gage Data and Modeling Software for 2 Different Specimen Designs

Robinson 210

Specimens of 304 stainless are failed in bending after a range of different gaseous hydrogen exposures. Two different specimen geometries have been tested. In order to determine the stresses on each specimen type, strain gage data and modeling software were used to estimate maximum bending stresses. The results are analyzed and used to construct stress amplitude (S) as a function of log10 Nf curves. The data in S-log Nf form may be used by future designers who predict allowable stresses for components which are subjected to fatigue loading in hydrogen environments.