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Measurement of Thermoplastics Tensile Proprieties Using Digital Image Correlation

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Abstract:

This paper presents measurement of tensile proprieties of thermoplastics by digital image correlation method. The objectives are to characterize based on experimental data the pre-and post-yield regime of polyvinylchloride (PVC) under uniaxial tension and to investigate the rate-dependent large deformation behaviour over crosshead speeds of 1, 5 and 25 mm/min respectively. The true strain-stress curves of PVC tested with different loading speeds are experimentally obtained and based on these a phenomenological constitutive model is implemented. The theoretical material model considers the variation of strain rates due to the inhomogeneous deformation behaviour of thermoplastic polymer and includes six parameters (material constants) to be identified according to the experimental results. It can be found that the effect of the strain rate on the true stress strain curves is small for lower strain rates but cannot be ignored for higher strain rate.

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Periodical:

Key Engineering Materials (Volume 601)

Pages:

33-36

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.601.33

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Online since:

March 2014

Authors:

Cristian Dudescu*, Adrian Botean, Mihail Hărdău, Nicolaie Bal

Keywords:

Digital Image Correlation (DIC), Phenomenological Model, Poly(vinyl chloride), Strain Rate

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] E. Parsons, M.C. Boyce, D.M. Parks, An experimental investigation of the large-strain tensile behavior of neat and rubber-toughened polycarbonate, Polymer 45 (2004) 2665-2684.

DOI: 10.1016/j.polymer.2004.01.068

Google Scholar

[2] O. De Almeida, F. Lagattu, J. Brillaud, Analysis by a 3D DIC technique of volumetric deformation gradients: application to polypropylene/EPR/talc composites, Composites Part A 39 (2008) 1210-1217.

DOI: 10.1016/j.compositesa.2007.08.028

Google Scholar

[3] F. Grytten, H. Daiyan, M. Polanco-Loria, S. Dumoulin, Use of digital image correlation to measure large-strain tensile proprieties of ductile thermoplastics, Polymer Testing 28 (2009) 653-660.

DOI: 10.1016/j.polymertesting.2009.05.009

Google Scholar

[4] M. Jarabek, Z. Major, R.W. Lang, Strain determination of polymeric materials using digital image correlation, Polymer Testing 29 (2010) 407-416.

DOI: 10.1016/j.polymertesting.2010.01.005

Google Scholar

[5] Qui-Zhi Fang, T.J. Wang, H.G. Beom, H.P. Zhao, Rate-dependent large deformation behavior of PC/ABS, Polymer 50 (2009) 296-304.

DOI: 10.1016/j.polymer.2008.10.042

Google Scholar

[6] Information on http: /www. dantec-dynamic. com.

Google Scholar

[7] C. Dudescu, A. Botean, M. Hardau, Thermal expansion coefficient determination of polymeric materials using digital image correlation, Materiale Plastice 50 (2013) 55-59.

Google Scholar