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Mechanics of agricultural materials /
The importance of economical production of agricultural materials, especially crops and animal products serving as base materials for foodstuffs, and of their technological processing (mechanical operations, storage, handling etc.) is ever-increasing. During technological processes agricultural mate...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés Hungarian |
| Publicado: |
Amsterdam ; New York : New York, N.Y., USA :
Elsevier ; Distribution for the USA and Canada, Elsevier Science Pub. Co.,
1986.
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| Colección: | Developments in agricultural engineering ;
8. |
| Temas: | |
| Acceso en línea: | Texto completo Texto completo |
Tabla de Contenidos:
- Front Cover; Mechanics of Agricultural Materials; Copyright Page; Table of Contents; Preface; Chapter 1. The development and importance of agricultural mechanics; Chapter 2. Physical properties of agricultural materials; 2.1 Shape and size; 2.2 Surface area; 2.3 Volume and density; 2.4 Thermal and hygroscopic expansion; Chapter 3. Mechanical properties; Chapter 4. Thermal properties; 4.1 Specific heat; 4.2 Heat-conduction coefficient; 4.3 Temperature conductivity; Chapter 5. Electrical properties; 5.1 Dielectric constant and dielectric loss; Chapter 6. Optical properties
- 6.1 Reflectance properties6.2 Transmittance properties; Chapter 7. Water storage in agricultural materials; 7.1 Physics of water storage; 7.2 Adsorption and desorption of water; 7.3 Equilibrium moisture content; 7.4 Moisture adsorption by hygroscopic materials; 7.5 Internal moisture movement; 7.6 Mass-transfer at the surface; 7.7 Mass-transfer coefficients; 7.8 Moisture gradients; 7.9 Contact moisture exchange; 7.10 The theory of drying; 7.11 General relationships in the drying process; 7.12 Heating and cooling of deep piles; 7.13 Heat production in biological materials during storage
- 7.14 Moisture exchange of fruits and vegetables with the airChapter 8. The background of rheology; 8.1 Characteristics of biological materials; 8.2 Ideal materials and their properties; 8.3 Time-dependent behavior of materials; viscoelasticity; 8.4 Creep; 8.5 Recovery; 8.6 Relaxation; 8.7 Linearity; 8.8 Rheological models; 8.9 Rheological equations; 8.10 Integral representation of viscoelastic constitutive equations; 8.11 Behavior of viscoelastic materials under oscillating loads; 8.12 Nonlinear constitutive equations; 8.13 Temperature effects; 8.14 Non-Newtonian fluids; viscosimetry
- Chapter 9. Contact stresses9.1 Contact stress in elastic bodies; 9.2 Contact stress in viscoelastic bodies; 9.3 The theory of the rigid die; the Boussinesq problem; Chapter 10. Impact loading; 10.1 Impact of elastic bodies; 10.2 Impact of viscoelastic bodies; 10.3 Application of cushioning materials; Chapter 11. The finite-element method; 11.1 Concept of the method; 11.2 Shapes of elements and the displacement function; 11.3 Embedding the elements into the continuum; 11.4 Finite-element formulation; 11.5 Viscoelastic stress analysis; numerical method
- 11.6 Application of the finite-element method to flow fieldsChapter 12. Application of rheology; 12.1 Force-deformation relationship; 12.2 Stress-strain relationships; Chapter 13. Mechanical damage; 13.1 Causes and the forms of appearance of damage; 13.2 Biological and chemical reactions after damage; 13.3 Establishing and measuring damage; 13.4 Effect of moisture changes on damage; 13.5 Impact damage; 13.6 Effects of various parameters on sensitivity to damage; Chapter 14. Aerodynamic and hydrodynamic properties and phenomena; 14.1 Aerodynamic drag coefficient; 14.2 Terminal velocity