Examining Specimen Bending Strain and Computing Misalignment Correction for Axial Load Frame Material Testing 2005-01-0804
Specimen grips in an axial load frame typically have a small misalignment that imposes bending strain on the clamped specimen. The bending strain causes variability in the material test results, especially in fatigue testing of brittle materials. This paper introduces new techniques for aiding load frame alignment. Examining the source of the bending strain identifies how much of the bending strain is due to the specimen imperfections versus the machine misalignment. Quantifying the misalignment components provides criteria for automating the setscrew adjustment selection of the alignment process.
Citation: Ellis, R., "Examining Specimen Bending Strain and Computing Misalignment Correction for Axial Load Frame Material Testing," SAE Technical Paper 2005-01-0804, 2005, https://doi.org/10.4271/2005-01-0804. Download Citation
Author(s):
Randy Ellis
Affiliated:
MTS Systems Corporation
Pages: 11
Event:
SAE 2005 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Fatigue Research and Applications 2005-SP-1952
Related Topics:
Frames
Fatigue
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