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10 Result(s)
within
Prof. Dr. Yuli K. Godovsky
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Book
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Chapter
Thermomechanics of Molecular Networks and Rubberlike Materials
On simple elongation, rubberlike materials are capable of undergoing very large reversible elastic deformations. The modulus of elasticity, which unlike solids is strongly dependent on deformation, is some ord...
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Chapter
Thermal Behavior of Solid Polymers During Fracture
The fracture of polymers is inevitably accompanied by thermal events. The sources of the thermal events may be both the deformational processes and the rupture of macromolecules. Pure elastic (brittle) fractur...
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Chapter
Heat Capacity
The heat capacity of any solid body is determined by the normal modes of vibrations available to its structure. If the spectrum of vibrational states, ρ(ω)dω, which gives the number of modes of vibration whose fr...
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Chapter
Thermal Expansion
Thermal expansion, or more widely thermal deformation, is characterized by the changes of the dimensions of a body resulting from the temperature changes. Similar to the thermal conductivity, the thermal expan...
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Chapter
Thermomechanics of Glassy and Crystalline Polymers
Conventionally, the deformation of solids is treated within the framework of elasticity theory in terms of stresses and strains, i.e. in purely mechanical terms. Although experimental determination of stress-s...
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Chapter
Thermodynamic Behavior of Solid Polymers in Plastic Deformation and Cold Drawing
The mechanical work spent on the irreversible deformation of solids is always at least partly dissipated. Therefore, independent of the sign of the heat effect resulting from the elastic deformation, plastic d...
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Chapter
Experimental Methods and Instrumentation
Three types of measurements are usually used for the study of the thermal behavior of polymers under deformation: the temperature changes resulting from the deformation of the sample, the temperature dependenc...
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Chapter
Thermal Conductivity
Most polymers are insulating systems, therefore, any electronic effects are absent in them and heat conduction occurs as a result of lattice vibrations. Theoretical consideration of the thermal conductivity of...
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Chapter
Experimental Methods and Instrumentation
Two methods are usually used for the determination of the heat capacity of polymers over a wide temperature range: adiabatic calorimetry and differential scanning calorimetry (DSC).
