PH8151 Engineering Physics Chapter 1

Chapter 1 PROPERTIES OF MATTER “Failure is central to engineering. Every single calculation that an engineer makes is a failure ...

2 CHAPTER 1. PROPERTIES OF MATTER recreation, food production, medicine & health care, etc. History of civilisation can be t ...

1.2. TESTING MECHANICAL PROPERTIES OF MATERIALS on engineers to understand how the various mechanical properties are measured an ...

4 CHAPTER 1. PROPERTIES OF MATTER should be at least four times this diameter; 60 mm is common. Gauge length is used in ductilit ...

1.2. TESTING MECHANICAL PROPERTIES OF MATERIALS should be at least four times this diameter; 60 mm is common. Gauge length is us ...

6 CHAPTER 1. PROPERTIES OF MATTER Worked out Example 1.2. The heels on a pair of women’s shoes have a radius of 0.5 cm at the bo ...

1.3. ENGINEERING STRESS-STRAIN DIAGRAM Learning Resource : Apparatus and Procedure for Tensile Test (1) Tensile testing using an ...

8 CHAPTER 1. PROPERTIES OF MATTER The slope of the linear segment in Figure1.6corresponds to the modulus of elasticity E. This m ...

1.3. ENGINEERING STRESS-STRAIN DIAGRAM Ultimate Tensile Strength : After yielding, the stress necessary to continue plastic defo ...

10 CHAPTER 1. PROPERTIES OF MATTER areaAiover which deformation is occurring (i.e., the neck, past the tensile point), or ‡T= F ...

1.3. ENGINEERING STRESS-STRAIN DIAGRAM where: ‡w=‡y/N (1.3) The choice of an appropriate value ofN is necessary. IfN is too larg ...

12 CHAPTER 1. PROPERTIES OF MATTER property is the modulus of resilience,Ur, which is the strain energy per unit volume required ...

1.4. TYPES OF ELASTIC MODULI should be at least four times this diameter; 60 mm is common. Gauge length is used in ductility com ...

14 CHAPTER 1. PROPERTIES OF MATTER should be at least four times this diameter; 60 mm is common. Gauge length is used in ductili ...

1.4. TYPES OF ELASTIC MODULI Figure 1.14: Uniform compression from initial volumeV to final volume (V≠V) due to pressureP acting ...

16 CHAPTER 1. PROPERTIES OF MATTER should be at least four times this diameter; 60 mm is common. Gauge length is used in ductili ...

Room-Temperature Young’s, Shear and Bulk 1.5. FACTORS AFFECTING ELASTICITY Moduli and Poisson’s Ratio for Various materials (Fig ...

18 CHAPTER 1. PROPERTIES OF MATTER specimen is decided by the stable equilibrium position that every atom finds itself in as a r ...

1.6. TORSIONAL STRESS AND DEFORMATIONS This is possible because of defects called in the grain structure which can move through ...

20 CHAPTER 1. PROPERTIES OF MATTER are (i) To impart an angular displacement of one end cross – section with respect to the othe ...