Influence of air and material damping on dynamic elastic modulus measurement
β Scribed by Chin-Chen Chiu
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 537 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0022-2461
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## Abstract A model based on the concept of fractional calculus is proposed for the description of the dynamic elastic modulus, __E__\* = __E__β² + __iE__β³, of polymer materials. This model takes into account three relaxation phenomena (Ξ±, Ξ², and Ξ³) under isochronal conditions. The differential equa
Tensile plastic deformation of polycrystalline aluminum causes an increase in the thermal expansion coefficient and a corresponding decrease in the elastic modulus. These properties vary with the deformation in a complex way and the changes were interpreted in terms of the introduction of two types