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About: Dynamic mechanical analysis     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Technique105665146, within Data Space : dbpedia.org associated with source document(s)

Type: topical conceptyago:WikicatScientificTechniquesyago:Ability105616246yago:Abstraction100002137yago:Act100030358yago:Activity100407535yago:Analysis100634276yago:ChemicalAnalysis100646833yago:Cognition100023271yago:Event100029378yago:Investigation100633864yago:Know-how105616786yago:Method105660268yago:PsychologicalFeature100023100yago:Work100575741yago:YagoPermanentlyLocatedEntityyago:Technique105665146 New Facet based on Instances of this Class

Dynamic mechanical analysis (abbreviated DMA) is a technique used to study and characterize materials. It is most useful for studying the viscoelastic behavior of polymers. A sinusoidal stress is applied and the strain in the material is measured, allowing one to determine the complex modulus. The temperature of the sample or the frequency of the stress are often varied, leading to variations in the complex modulus; this approach can be used to locate the glass transition temperature of the material, as well as to identify transitions corresponding to other molecular motions.