dynamic mechanical analysis

HBU 523 Gabometer

The Intelligent Universal Flexometer 

Highlights
Method
Specifications
Software
Contact
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Highlights

Accurate measurements of heat build-up or blowout processes and the determination of the thermal set can be realised by our HBU 523 Gabometer system – a development based on the established Goodrich Flexometer.

Both force- and elongation-controlled tests can be carried out with this state-of-the-art type of flexometer. The HBU 523 Gabometer is suitable for improving the thermal dissipation and the durability of semi-finished tire components, dampers or absorbers.

Additionally, the new generation allows for measurement of the material stiffness (E modulus, tanδ option) and damping.

Your Advantages

  • Automatic Sample Changer (ASC) for fully automatic testing (24h) (option)
  • Simultaneous measurement of the visco-elastic properties (option)
  • Visco-elastic properties in DMTS/DMA mode (option)
  • Hysteresis analysis (option)
  • Pulse load mode available (option)

Method

Dynamic Mechanical Analysis (DMA) provides valuable insights into various aspects of material behavior. It offers information on viscoelastic properties such as storage and Viscous modulusThe complex modulus (viscous component), loss modulus, or G’’, is the “imaginary” part of the samples the overall complex modulus. This viscous component indicates the liquid like, or out of phase, response of the sample being measurement. loss modulus, loss factor, and tan δ. 

Additionally, DMA allows the examination of stiffness and damping properties under diverse conditions, including temperature, frequency, StressStress is defined as a level of force applied on a sample with a well-defined cross section. (Stress = force/area). Samples having a circular or rectangular cross section can be compressed or stretched. Elastic materials like rubber can be stretched up to 5 to 10 times their original length.stress, StrainStrain describes a deformation of a material, which is loaded mechanically by an external force or stress. Rubber compounds show creep properties, if a static load is applied.strain, gas atmosphere, and liquid environments. It facilitates the identification of material reactions, Phase TransitionsThe term phase transition (or phase change) is most commonly used to describe transitions between the solid, liquid and gaseous states.phase transitions, and the Glass Transition TemperatureThe glass transition is one of the most important properties of amorphous and semi-crystalline materials, e.g., inorganic glasses, amorphous metals, polymers, pharmaceuticals and food ingredients, etc., and describes the temperature region where the mechanical properties of the materials change from hard and brittle to more soft, deformable or rubbery.glass transition temperature of highly cross-linked polymers and composites. 

Moreover, DMA aids in assessing the compatibility of polymer blends based on composition and structure, as well as the impact of filler and additive contents. It also helps in understanding Curing (Crosslinking Reactions)Literally translated, the term “crosslinking“ means “cross networking”. In the chemical context, it is used for reactions in which molecules are linked together by introducing covalent bonds and forming three-dimensional networks.curing and post-Curing (Crosslinking Reactions)Literally translated, the term “crosslinking“ means “cross networking”. In the chemical context, it is used for reactions in which molecules are linked together by introducing covalent bonds and forming three-dimensional networks.curing processes of resins, analyzing aging influences, and predicting material behavior through Time-Temperature-Superposition (TTS). 

Furthermore, DMA enables the study of CreepCreep describes a time and temperature dependent plastic deformation under a constant force. When a constant force is applied to a rubber compound, the initial deformation obtained due to the application of the force is not fixed. The deformation will increase with time.creep and RelaxationWhen a constant strain is applied to a rubber compound, the force necessary to maintain that strain is not constant but decreases with time; this behavior is known as stress relaxation. The process responsible for stress relaxation can be physical or chemical, and under normal conditions, both will occur at the same time. relaxation processes, contributing to a comprehensive understanding of material performance.

Specifications

Technical Data

Temperature Range
RT to 300°C
-160°C up to 300°C with LN2
Dynamic Force
up to ± 4000 N
Test Specimen Size
Diameter: up to 30 mm (optional < 40 mm), depending on model
Length: 25 mm
  • Static Force up to ± 6000 N
  • Static Deformation up to 70 mm
  • Frequency Range: 30 Hz (0.0001 Hz to 100 Hz, optional)

Software

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Downloads & Media

Brochure

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