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Dynamic Mechanical Analysis (.doc)

From Associated Polymer Labs, Inc.
 

 

The DMA determines changes in sample properties resulting from changes in five experimental variables: temperature, time, frequency, force, and strain. The deformation can be applied sinusoidally, in a constant, or under a fixed rate. The DMA uses samples that can be in bulk solid, film, fiber, gel, or viscous liquid form. Interchangeable fixtures are employed to allow you to measure many properties, including: modulus, damping, creep, stress relaxation, glass transitions, and softening points.


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Product Announcements
Associated Polymer Labs, Inc. - Solids Liquids DMA Dynamic Mechanical Analysis
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M&P Lab (The) - New Q600 TGA/DSC (SDT) and Q400 (TMA)
The M&P Lab has recently added two state-of-the-art Q Series™ thermal analysis instruments from TA Instruments to the chemical analysis department -- the Q600 Simultaneous TGA/DSC (SDT) and... (read more)
Anton Paar - Density Meter DMA 4500 M
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TAICA Corporation (formerly Geltec Co., Ltd.) - Alpha Gel excels in vibration and shock isolation.
An ordinary fresh raw egg dropped down from 18 meters high to a 2 cm thick bed does not break. Over decades, Alpha Gel has proven excellent cushioning and vibration damping performance. It also... (read more)
 

Topics of Interest
15.1 Dynamic Mechanical Analysis 15.1.1 Theory Dynamic mechanical analysis (DMA) provides putative information on the viscoelastic properties - modulus and damping - of materials. (Read More)
4.5 Thermomechanical Analysis, DMA, and DETA 4.5.1 Principle of TMA The variables of state for thermomechanical analysis are deformation (strain) and stress. The SI units of deformation are... (Read More)
Dynamic mechanical analysis (DMA) is an analytical technique which measures the modulus (stiffness) and damping (energy dissipation) properties of materials as those materials are deformed under... (Read More)
As the name implies, viscoelastic materials respond to stress as complex aggregates of many different elastic and viscous (fluid) elements. The springs in the highly simplified model of Fig. D1.4... (Read More)
OVERVIEW Fatigue could be defined as any change in the properties of a material caused by prolonged action of stress or strain, but this general definition would then include creep and stress... (Read More)