Data for: The Development of a Novel Small Ring Specimen Tensile Testing Technique

Published: 5 Dec 2018 | Version 1 | DOI: 10.17632/m8t44pw7wd.1

Description of this data

The wide scale use of small specimens in routine testing programs could significantly reduce material resource requirements (factors of 10 are easily achievable). This is a major benefit to situations where there is not enough material to manufacture conventional, full-size specimens, such as first-stage gas turbine blade roots. However, limitations exist due to concerns over size effects, manufacturing difficulties, uncertainties related to the application of representative loading conditions and complex interpretation procedures of non-standard data. Due to these limitations, small specimen testing techniques have been mostly applied in ranking exercises and to determine approximate or simple material parameters such as Young’s modulus, minimum creep strain rate and fracture toughness. The small ring method is a novel, high sensitivity small specimen technique for creep testing that has been extended in the present work to the determination of tensile material properties. The main advantages of the small ring specimen are that it is self-aligning and has a large equivalent gauge length in comparison to other small specimens, resulting in much higher testing sensitivity. In the present work, this specimen type mimics conventional, full-size, monotonic testing, allowing for observations of elastic and plastic material response to be made. Wrought aluminium alloy 7175-T7153 small rings were tested at room temperature at 5 different loading (displacement) rates and the results compared to conventional, full-size, monotonic specimen equivalents. Finite element analysis was conducted in order to evaluate the equivalent gauge section and equivalent gauge length in the small ring specimen (which varied between circa 0.35-1.4mm2 and 25-45mm, respectively) to facilitate these comparisons. An analytical solution has also been derived in order to validate the finite element analysis.

Experiment data files

This data is associated with the following publication:

The development of a novel technique for small ring specimen tensile testing

Published in: Theoretical and Applied Fracture Mechanics

Latest version

  • Version 1


    Published: 2018-12-05

    DOI: 10.17632/m8t44pw7wd.1

    Cite this dataset

    Hyde, Christopher; De Focatiis, Davide; Kazakeviciute, Julija; Rouse, James; Lam, Marc (2018), “Data for: The Development of a Novel Small Ring Specimen Tensile Testing Technique”, Mendeley Data, v1


Views: 251
Downloads: 60


Materials Testing


CC BY 4.0 Learn more

The files associated with this dataset are licensed under a Creative Commons Attribution 4.0 International licence.

What does this mean?
You can share, copy and modify this dataset so long as you give appropriate credit, provide a link to the CC BY license, and indicate if changes were made, but you may not do so in a way that suggests the rights holder has endorsed you or your use of the dataset. Note that further permission may be required for any content within the dataset that is identified as belonging to a third party.