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Logarithmic decrement

Term · Chemistry · MLC-T-CHM-006750

A measure of the damping in an oscillating system, defined as the natural logarithm of the ratio of two successive amplitudes in a free damped oscillation. It quantifies the rate at which oscillations decay over time. For polymers, it is often used to characterize viscoelastic properties and energy dissipation.

Table 1. Record
IdentifierMLC-T-CHM-006750
FieldChemistry
SubjectPolymer
ReferencesPAC, 2013, 85, 1017. 'Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)' on page 1032 (https://doi.org/10.1351/PAC-REC-12-03-02)
See alsoDamping curve
Record as JSON
{
  "id": "MLC-T-CHM-006750",
  "term": "Logarithmic decrement",
  "field": "Chemistry",
  "definition": "A measure of the damping in an oscillating system, defined as the natural logarithm of the ratio of two successive amplitudes in a free damped oscillation. It quantifies the rate at which oscillations decay over time. For polymers, it is often used to characterize viscoelastic properties and energy dissipation.",
  "subject": "Polymer",
  "see_also": [
    "damping curve"
  ],
  "references": [
    "PAC, 2013, 85, 1017. 'Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)' on page 1032 (https://doi.org/10.1351/PAC-REC-12-03-02)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/logarithmic-decrement/"
}

Record 7,149 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.