dc.contributor.author |
Rathnayaka, RMPC |
|
dc.contributor.author |
Madushani, HDT |
|
dc.contributor.author |
Weragoda, VSC |
|
dc.contributor.editor |
Sivahar, V |
|
dc.contributor.editor |
Sitinamaluwa, HS |
|
dc.date.accessioned |
2022-03-16T03:38:26Z |
|
dc.date.available |
2022-03-16T03:38:26Z |
|
dc.date.issued |
2019-01 |
|
dc.identifier.citation |
Rathnayaka, R.M.P.C., Madushani, H.D.T., & Weragoda, V.S.C. (2019). Development of a lab scale dynamic mechanical analyzer [Abstract]. In V. Sivahar & H.S. Sitinamaluwa (Eds.), Dreams to reality through innovative materials (p. 21). Department of Materials Science and Engineering, University of Moratuwa. |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/17381 |
|
dc.description.abstract |
Dynamic mechanical properties refer to the response of a material when it is subjected
to a periodic strain. Dynamic mechanical analysis (DMA) is an important technique
used to measure the mechanical and viscoelastic properties of materials such as
thermoplastics, thermosets and elastomers. The aim of this research is to study the
Dynamic Mechanical behavior of elastomer compounds by developing a lab-scale
dynamic mechanical analyzer. The apparatus was designed to record a test specimen's
reaction force when a systematically varying gradual strain development is applied.
The phase difference between the applied strain and the material's response in terms
of force was used to estimate the storage modulus and loss modulus to analyze the
material properties. Furthermore, the dynamic modulus, dynamic loss modulus, and the
mechanical damping coefficient of the elastomer could be estimated using the
developed dynamic mechanical analyzer.
The values obtained using the developed apparatus showed a fairly good agreement
with the values for the same compound obtained from Prescott instruments ODR. The
deviations were within 3.5%. One of the major shortcomings of the apparatus was the
fact that the operating frequency was limited to IHz and there is no provision for
carrying out measurements in varying temperature conditions. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Materials Science and Engineering |
en_US |
dc.subject |
Dynamic mechanical analysis |
en_US |
dc.subject |
Loss modulus |
en_US |
dc.subject |
Storage modulus |
en_US |
dc.subject |
Dynamic modulus |
en_US |
dc.title |
Development of a lab scale dynamic mechanical analyzer |
en_US |
dc.type |
Conference-Abstract |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Materials Science and Engineering |
en_US |
dc.identifier.year |
2019 |
en_US |
dc.identifier.conference |
Materials Engineering Symposium on Innovations for Industry 2019 |
en_US |
dc.identifier.place |
Katubedda |
en_US |
dc.identifier.pgnos |
p. 21 |
en_US |
dc.identifier.proceeding |
Dreams to reality through innovative materials |
en_US |
dc.identifier.email |
sampathw@uom.lk |
en_US |