منابع مشابه
Linear viscoelasticity of a single semiflexible polymer with internal friction.
The linear viscoelastic behaviors of single semiflexible chains with internal friction are studied based on the wormlike-chain model. It is shown that the frequency dependence of the complex compliance in the high frequency limit is the same as that of the Voigt model. This asymptotic behavior appears also for the Rouse model with internal friction. We derive the characteristic times for both t...
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It i s emphasized t h a t a d i s t r i b u t i o n func t ion i n both the d i s l o c a t i o n loop lengths and obstac le s t rengths must be considered t o develop a q u a n t i t a t i v e theory f o r the h y s t e r e t i c d i s s i p a t i o n o f energy. That i s when d i s l o c a t i o n surmounts an undulat ing i n t e r n a l s t ress f i e l d and t h e break-away i s r e s t r i...
متن کاملINTERNAL FRICTION OF DEFORMED NaCL
Internal friction of deformed oriented NaCl single crystals has been measured as a function of flow stress, strain amplitude, frequency, temperature and divalent doping. In pure NaCl af er deformation a maximum of internal friction PI is observed at low temperatures. With increasing 1+ Sr doping a second but much weaker peak P2 appears at higher temperatures. The dependencies of PI on the...
متن کاملInternal friction in enzyme reactions.
The empirical concept of internal friction was introduced 20 years ago. This review summarizes the results of experimental and theoretical studies that help to uncover the nature of internal friction. After the history of the concept, we describe the experimental challenges in measuring and interpreting internal friction based on the viscosity dependence of enzyme reactions. We also present spe...
متن کاملInternal Friction in Concentrated Alloys
Internal friction in concentrated alloys at kHz frequencies and at temperatures from 120 3 0 0 K has been studied in alpha-and beta-brasses as a function of grain size, temperature and pre-strain, and a statistical model has been proposed to account for the observations.
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ژورنال
عنوان ژورنال: Applications of Mathematics
سال: 1960
ISSN: 0862-7940,1572-9109
DOI: 10.21136/am.1960.102723