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Obtaining Fourier series graphically from large amplitude oscillatory shear loops
- Source :
- Rheologica Acta. 32:328-332
- Publication Year :
- 1993
- Publisher :
- Springer Science and Business Media LLC, 1993.
-
Abstract
- Large amplitude oscillatory shear (LAOS) flow has been used to characterize the nonlinear viscoelasticity of polymer melts and solutions. Results are frequently reported with shear stress versus strain loops, or with shear stress versus shear rate loops. A Fourier analysis of the stress response to LAOS is often desired for comparison with theory, or for quantitative comparison between resins. A method is presented which employs the discrete Fourier transform to obtain the Fourier series coefficients from LAOS loops.
- Subjects :
- Chemistry
Mathematical analysis
Mineralogy
Condensed Matter Physics
Viscoelasticity
Discrete Fourier transform
Physics::Fluid Dynamics
Condensed Matter::Soft Condensed Matter
Harmonic analysis
Shear rate
symbols.namesake
Fourier analysis
Shear stress
symbols
General Materials Science
Shear flow
Fourier series
Subjects
Details
- ISSN :
- 14351528 and 00354511
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- Rheologica Acta
- Accession number :
- edsair.doi...........bc7bbf6569cb2a90117980521a872f01