Dynamic Mechanical Analysis (DMA) is crucial for characterizing rubber's viscoelastic behavior. Recent Alpha Technologies DMA advancements include fatigue testing and heat build-up (HBU), based on ASTM D623, which measure internal and surface temperature during significant sinusoidal displacement. This is vital for the tire industry to predict overheating and compare rubber formulations' self-heating susceptibility. Combining HBU and DMA offers precise control over force/displacement and simultaneous monitoring of viscoelastic properties (complex modulus and Tan delta) alongside temperature. This presentation details the methodology, explores the influence of parameters like frequency and strain on self-heating, and demonstrates the method's practical utility for the tire industry.

• The updated DMA now includes HeatBuildUp (HBU) tests to measure internal and surface temperature during fatigue tests.
• The presentation describes how HBU tests with the DMA allows for precise control over force/displacement and simultaneous monitoring of viscoelastic properties (modulus, Tan delta) and temperature.
• The importance of HBU tests for the tire industry to predict overheating and blowouts
• The presentation explore the influence of parameters (frequency, strain, force, waveform) on self-heating