Unit 1 Engineering Physics

10 CHAPTER 1. PROPERTIES OF MATTER Displacement Time Stress Strain True Corrected Engineering M M’ Figure 1.8: A comparison of t ...

1.3. ENGINEERING STRESS-STRAIN DIAGRAM Area under stress-strain graph in the elastic region gives the energy required to deform ...

12 CHAPTER 1. PROPERTIES OF MATTER Worked out Example 1.3.1 a load of 500 N (112 lbf) is applied. Assume that the deformation is ...

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 on a body, the elasticity of a body decreases. Eect of temperature:In general, elasticity dec ...

1.6 Torsional stress and Deformations....................... 1.6 Torsional stress and Deformations Torsion: Consider a shaft rig ...

20 CHAPTER 1. PROPERTIES OF MATTER Torsion wrench Screw driver Automobile Suspension Tightening of a nut with a wrench Steam tur ...

1.7. TORSION PENDULUM Figure 1.19: A torsion pendulum Torsion pendulum was invented by Charles-Augustin de Coulomb (in 1777) who ...

22 CHAPTER 1. PROPERTIES OF MATTER P x Q A B C φ θ dx r l Fixed End Free End (twisted) Figure 1.21: Couple per unit twist The Ri ...

1.7. TORSION PENDULUM The restoring torque acting on the suspension wireT for a given twist◊is obtained by integrating the expre ...

24 CHAPTER 1. PROPERTIES OF MATTER The moment of inertia of a circular disc of massMand radiusR, about an axis passing through i ...

1.7. TORSION PENDULUM m m m m d 1 d 1 d 2 d 2 (i) (ii) (iii) Axis of cylindrical mass Figure 1.22: Determination of Rigidity Mod ...

26 CHAPTER 1. PROPERTIES OF MATTER Worked out Example 1.7.1 Data obtained in a torsional pendulum experiment are given below. Me ...

1.8. BENDING OF BEAMS axis in the plane of symmetry is an axis of symmetry of the cross sections. In addition, all loads are ass ...

28 CHAPTER 1. PROPERTIES OF MATTER 1.9 Bending Moment of a Beam Consider a beam whose neutral filament MN is bent into an arc of ...

1.10 Cantilever: Theory and Experiment...................... The cross-sectional area of the beam can be thought of as made up o ...