Flexibility of three differential constitutive models evaluated by large amplitude oscillatory shear and Fourier transform rheology
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- 作者：Radek Pivokonsky ; pivokonsky@ih.cas.cz" class="auth_mail" title="E-mail the corresponding author ; Petr Filip ; Jana Zelenkova
- 关键词：LAOS ; Fourier transform rheology ; Giesekus model ; PTT model ; Modified XPP model ; Poly(ethylene oxide)
- 刊名：Polymer
- 出版年：2016
- 出版时间：8 November 2016
- 年：2016
- 卷：104
- 期：Complete
- 页码：171-178
- 全文大小：3142 K
文摘
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Higher number of harmonics are necessary to take into account to fit the LAOS data.
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Both magnitudes and phases should be used for adjustment of nonlinear parameters.
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Due to physical reasons a Giesekus parameter should be restricted to 0 < α < 1/2.