Stress relaxation

{
  "id": "MLC-T-CHM-011475",
  "term": "Stress relaxation",
  "field": "Chemistry",
  "definition": "The time-dependent decrease in stress within a material when it is subjected to a constant strain. This occurs as molecular rearrangements or viscous flow mechanisms dissipate the stored elastic energy over time. Stress relaxation is a characteristic viscoelastic property of polymers and is measured by monitoring the stress decay at a fixed deformation.",
  "subject": "Polymer",
  "references": [
    "PAC, 2013, 85, 1017. 'Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)' on page 1039 (https://doi.org/10.1351/PAC-REC-12-03-02)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/stress-relaxation/"
}