Analysis of steady state shearing and stress relaxation in the Maxwell orthogonal rheometer
β Scribed by R. Byron Bird; Everette K. Harris Jr.
- Publisher
- American Institute of Chemical Engineers
- Year
- 1968
- Tongue
- English
- Weight
- 376 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0001-1541
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## Synopsis -111 analysis of the Maxwell orthogonal rheometer for polymer melts is made by using the constitutive equation of White and JIetzner. The results indicate that the shear iieformation involved is oscillatory and that the storage and loss moduli of the melt may be derived from the measur
The acoustic properties of PMMA poly(methyl methacrylate) deformed by tensile stress were investigated by the coherent Brillouin scattering method. The ultrasonic velocities of PMMA in steady stress-strain states were measured in the frequency range of 100 MHz to 1 GHz. The ultrasonic velocities dec