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A Novel Method for the Accurate Evaluation of Poisson’s Ratio of Soft Polymer Materials
Joint Authors
Lee, Jae-Hoon
Park, Seonghun
Chang, Jun-Dong
Kang, Dong-Joong
Park, Sungchan
Thompson, Mark S.
Lee, Sang-Soo
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-23
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
A new method with a simple algorithm was developed to accurately measure Poisson’s ratio of soft materials such as polyvinyl alcohol hydrogel (PVA-H) with a custom experimental apparatus consisting of a tension device, a micro X-Y stage, an optical microscope, and a charge-coupled device camera.
In the proposed method, the initial positions of the four vertices of an arbitrarily selected quadrilateral from the sample surface were first measured to generate a 2D 1st-order 4-node quadrilateral element for finite element numerical analysis.
Next, minimum and maximum principal strains were calculated from differences between the initial and deformed shapes of the quadrilateral under tension.
Finally, Poisson’s ratio of PVA-H was determined by the ratio of minimum principal strain to maximum principal strain.
This novel method has an advantage in the accurate evaluation of Poisson’s ratio despite misalignment between specimens and experimental devices.
In this study, Poisson’s ratio of PVA-H was 0.44 ± 0.025 (n=6) for 2.6–47.0% elongations with a tendency to decrease with increasing elongation.
The current evaluation method of Poisson’s ratio with a simple measurement system can be employed to a real-time automated vision-tracking system which is used to accurately evaluate the material properties of various soft materials.
American Psychological Association (APA)
Lee, Jae-Hoon& Lee, Sang-Soo& Chang, Jun-Dong& Thompson, Mark S.& Kang, Dong-Joong& Park, Sungchan…[et al.]. 2013. A Novel Method for the Accurate Evaluation of Poisson’s Ratio of Soft Polymer Materials. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1033449
Modern Language Association (MLA)
Lee, Jae-Hoon…[et al.]. A Novel Method for the Accurate Evaluation of Poisson’s Ratio of Soft Polymer Materials. The Scientific World Journal No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-1033449
American Medical Association (AMA)
Lee, Jae-Hoon& Lee, Sang-Soo& Chang, Jun-Dong& Thompson, Mark S.& Kang, Dong-Joong& Park, Sungchan…[et al.]. A Novel Method for the Accurate Evaluation of Poisson’s Ratio of Soft Polymer Materials. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1033449
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1033449