Dynamic Mechanical Analysis (DMA)
ARDL’s capabilities for Dynamic Mechanical Analysis (DMA) and Thermomechanical Analysis (TMA) include coefficient of linear thermal expansion, forced vibration and glass transition temperature testing.
ARDL’s testing capabilities allow us to measure the forced vibration of materials through dynamic mechanical analysis. Forced vibration is vibration caused by one object being forced to vibrate when another connected object is vibrated. Using specific test methodologies and fixturing, we are able to measure the response of materials when forced into vibration.
Glass Transition Temperature Testing
The introduction of heat, cooling or compression can have an effect on the properties of materials. When these environments cause the material to change from exhibiting solid-like properties to a liquid-like phase, the material is said to have passed through its glass transition temperature (Tg). ARDL measures glass transition using Dynamic Mechanical Analyzer (DMA) and Thermomechanical Analyzer (TMA) equipment in addition to Differential Scanning Calorimetry (DSC) methods. According to ASTM, Dynamic Mechanical Analyzers monitor changes in the viscoelastic properties of a material as a function of temperature and frequency, providing a means to quantify these changes. In ideal cases, the temperature of the onset of the decrease in storage modulus marks the glass transition. Our TMA equipment provides for analysis using frequency and temperature sweeps. ARDL can also test using three-point bend, Metravib and other DMA equipment.
Dynamic Mechanical Analysis (DMA) - Dynamic Testing of Vulcanized Rubber - Vibratory Method
Standard Guide for Dynamic Testing of Vulcanized Rubber and Rubber-Like Materials Using Vibratory MethodsASTM D5992
Dynamic Mechanical Analysis (DMA) - Glass Transition, Tg - Dynamic Mechanical Analysis Method
Standard Test Method for Assignment of the Glass Transition Temperature By Dynamic Mechanical AnalysisASTM E1640
Dynamic Mechanical Analysis (DMA) - Plastics
Standard Practice for Plastics: Dynamic Mechanical Properties: Determination and Report of ProceduresASTM D4065
Dynamic Mechanical Analysis (DMA) - Plastics Properties
Standard Terminology for Plastics: Dynamic Mechanical PropertiesASTM D4092
Metravib - DMA Testing - Compression
Standard Guide for Dynamic Testing of Vulcanized Rubber and Rubber-Like Materials Using Vibratory MethodsASTM D5992 - Compression
Metravib - DMA Testing - Dual Lap Shear
Standard Guide for Dynamic Testing of Vulcanized Rubber and Rubber-Like Materials Using Vibratory MethodsASTM D5992 - Dual Lap Shear