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Title: | Differential viscoelastic constitutive equations in steady shear and extensional flows | ||||||||||
Author: | Zatloukal, Martin | ||||||||||
Document type: | Peer-reviewed article (English) | ||||||||||
Source document: | Journal of Non-Newtonian Fluid Mechanics. 2003, vol. 113, issue 2-3, p. 137-155 | ||||||||||
ISSN: | 0377-0257 (Sherpa/RoMEO, JCR) | ||||||||||
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DOI: | https://doi.org/10.1016/S0377-0257(03)00112-5 | | ||||||||||
Abstract: | A modification of the dissipation term in the Leonov model using relaxation-time-dependent adjustable parameters is proposed to increase its capability to represent elongational flow behavior more properly. The fitting/predicting capabilities of the proposed modified Leonov model are compared with the eXtended Pom-Pom model and modified White-Metzner model in steady shear and uniaxial extensional flows of LDPE, mLLDPE and PVB melts. | ||||||||||
Full text: | https://www.sciencedirect.com/science/article/pii/S0377025703001125 | ||||||||||
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