Journal Published Online: 13 November 2008
Volume 37, Issue 1

Measurement of Very Low Creep Strains: A Review



Various experimental techniques using mechanical springs for high strain sensitivity creep testing are described. A theory of stress and strain using these techniques is briefly summarized. Problems and advantages of the helicoid spring specimen technique are also analyzed. The helicoid spring specimen technique provides high efficiency for low-stress creep experiments in the self-loaded mode, while the external load mode allows extraordinary strain sensitivity. A new machine for conducting high-sensitivity torsion creep tests is presented together with some examples of creep curves obtained by the technique. The machine was designed to enable high sensitivity creep tests of inherently brittle materials such as intermetallics and ceramics.

Author Information

Kloc, Luboš
Institute of Physics of Materials AS CR, Brno, Czech Republic
Mareček, Petr
Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic
Pages: 6
Price: $25.00
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Stock #: JTE101475
ISSN: 0090-3973
DOI: 10.1520/JTE101475