Is Dynamic Mechanical Analysis (DMA) a non-resonance technique?
Dynamic Mechanical Analysis is an experimental technique commonly used to study the viscoelastic behaviour of materials over a range of temperatures and frequencies. Although considered as a forced non-resonance technique, the warned users perfectly know that resonant frequencies are inevitably enco...
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Published in | EPJ Web of conferences Vol. 6; pp. 41004 - 41011 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
EDP Sciences
01.01.2010
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Online Access | Get full text |
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Summary: | Dynamic Mechanical Analysis is an experimental technique commonly used to study the viscoelastic behaviour of materials over a range of temperatures and frequencies. Although considered as a forced non-resonance technique, the warned users perfectly know that resonant frequencies are inevitably encountered on the typical frequency range of DMA apparatus. In consequences, the measured properties in the area of the resonant frequencies are completely perturbed. This work proposes an analysis of the dynamic behaviour of a Bose Electroforce DMA. The resonant and perturbed frequencies have been identified in different experimental configurations using several materials. A straightforward analytical model was developed to simulate and predict the dynamic behaviour of our apparatus. The model parameters are identified using different experimental configurations. The simulations delivered by the model allow the user to predict the perturbed frequency areas and by this way authorise a strategic definition of the experimental protocol according to the sample characteristics. |
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Bibliography: | istex:C0114352CB0A891AD6FE925B26C44CF91DB97D26 ark:/67375/80W-7XNSC9MB-P publisher-ID:epjconf_ICEM14_41004 other:2010EPJWC...641004P |
ISSN: | 2100-014X 2100-014X |
DOI: | 10.1051/epjconf/20100641004 |