This module has 5 units
1. Describe
environmental chemistry
fundamentals
2. Apply Environmental Chemistry of
Water
3. Describe atmospheric
Chemistry
4.
Describe Pesticides
5. Describe
Renewable energy
UNIT 2: MECANICAL PROPERTIES OF MATERIALS. 16
2.2. Response of materials to stress. 17
2.4.1. Stress-strain Diagram.. 21
2.4.2. Proportional Limit (Hooke's Law). 22
2.4.4. Elastic and Plastic Ranges. 22
2.4.6. Ultimate Tensile Strength. 23
2.4.8. Modulus of Resilience. 23
2.4.9. Modulus of Toughness. 24
2.4.10. Necking in Tension. 24
2.4.13. Working Stress, Allowable Stress, and Factor of Safety. 26
2.8.1. Torsional shearing stress, τ. 32
2.10. Normal and shear stresses on inclined sections. 34
2.10.1. Calculation of the associated stresses. 34
2.10.3. Calculation example. 37
2.11.3. Construction of Mohr's circle. 43