UC005

Compression stress relaxation testing (up to 24 hours)

Description
A uniaxial compression specimen is loaded to a specified strain.  The imposed strain is maintained for up to 24 hours and the stress/strain response of the material is measured.  The specimen is unloaded to zero stress at the end of the specified time duration.  Strain is determined by measuring the local platen displacement using a clip-on extensometer or Digital Image Correlation (DIC).

Temperature Options
This test can generally be performed at any temperature between -80ºC and 280ºC.

  • CT: Cryogenic temperatures (-80ºC to 20ºC)
  • RT: Room temperature (~ 20ºC)
  • HT: High temperatures (20ºC to 280ºC)


Strain Rates
Strain rates up to ~ 1/s are possible, depending on specimen geometry.

Applicable Standards
ASTM D575, ASTM D695, ISO 604

Data Provided
Time, Engineering Strain, Engineering Stress

Specimen Requirements
Cylinders, prisms, or tubes with dimensions as specified in ASTM D575, ASTM D695, and ISO 604 are preferred.  Comparable geometries are also possible.

Note that we request extra specimens to ensure a sufficient supply of specimens for valid testing.

Veryst can also assist in molding standard and non-standard test specimens.  Please contact us if you are interested in discussing this option.

Replicates Recommended
One - three (1-3)

More Information
For a customized quotation, please write to us at testing@veryst.com and indicate the Test ID (UC005), type of material, test temperatures, specimen geometries available, or other relevant details.

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