We offer advanced vibration testing solutions in
the Indian market through an EXCLUSIVE
arrangement with our principals Damping
Technologies Inc, USA.
The testing setup confirms to ASTM E-756, SAE
J1637 (Oberst Bar), etc. Vibrating Beam
Technique Material Measurements.
The testing technique applies to many classes of
materials including, but not limited to:
- Plastic Compounds
- Elastomeric Compounds
- Thermoplastic Adhesives
- Thermoset Adhesives
- Pressure Sensitive Adhesives
- Epoxy Systems
- Structural Foams
- Body Sealers
- Mastics
- Body Panel Stiffeners
- Surface Damping Treatments
- Friction Materials
- Sealant Foams
- Plastic Composites
- Metals and Metal Alloys
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Material Damping Properties are
useful for material selection tasks, particularly when combined with
suitable analytic (FEA or other) models to predict structural
dynamics as a function of temperature and frequency. Such data can
be used to assess structural integrity issues, noise and vibration
concerns, and high cycle fatigue.
This technique is particularly applicable for archiving dynamic
mechanical properties of materials for a database of candidate
materials for many applications.
Advantages
Each test technique used to
characterize the dynamic mechanical properties
of viscoelastic materials have inherent
advantages and limitations. The ASTM E-756
Vibrating beam technique has been shown to
exhibit the following advantages:
- Conducive to automated data acquisition
and minimum user interaction.
- Well suited to evaluation of very stiff
materials, particularly in the glassy region
(homogeneous or Oberst configurations).
- Well suited for evaluation of very soft
materials (sandwich configuration).
- Minimal adhesion/boundary condition/test
fixture data contamination (typically a
problem with forced-oscillation techniques).
- Wide temperature range.
- Wide frequency range (consistent with most
automotive /aircraft industry requirements)
- Efficient "first look" at dynamic
properties.
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