TWA 13
Low Cycle Fatigue (LCF)
LCF tests are essential to ensure the safe operation of components that are at sometime repetitively stressed into the plastic region. The objective of this TWA, was to identify those aspects of testing procedure that significantly affected the repeatability and reproducibility of the results of LCF tests at high temperatures. Such aspects included test variables that were not standardised, eg specimen size and shape, alignment errors, extensometer type and failure criteria. The objectives were to:
- Develop a framework for quantifying measurement uncertainties in low cycle fatigue data
- Validate a new code of practice for the measurement of bending caused by load misalignment in uniaxial fatigue testing
- Provide pre-cursor information for the development of a LCF reference material
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