Contents

ENES 140 Mechanics of Materials

The student will acquire a knowledge of the distortion of engineering materials in relation to changes in stress or temperature. The geometry of internal strain and external displacement will be studied. Applications will be presented and discussed which cover beams, columns, shafts, tanks, and other structural machine and vehicle members.  

Credits

3

Prerequisite

ENES 120 and MATH 182

Hours Weekly

2 hours lecture, 2 hours recitation weekly

Course Objectives

  1. 1. Analyze a stress-strain diagram for a typical structural steel in tension.
  2. 2. Determine the normal stress and strain of members subjected to axial loads.
  3. 3. Determine the shear stress and strain of members subjected to bearing loads.
  4. 4. Compute the stresses in statically indeterminate structures.
  5. 5. Calculate the stresses set up in a bar due to temperature changes.
  6. 6. Explain the changes in stresses action on inclined planes.
  7. 7. Compute the shear stresses of solid or hollow shafts subjected to torques.
  8. 8. Analyze the structural effects of power transmission by circular shafts.
  9. 9. Discuss the shear forces and bending moments on various types of loaded beams.
  10. 10. Derive the relationships between load, shear force, and bending moment for a beam.
  11. 11. Construct shear force and bending moment diagrams for various types of loaded beams.
  12. 12. Develop the deflection curve of a beam.
  13. 13. Compute the normal strains and stresses in beams of different cross sections.
  14. 14. Evaluate the shear stresses in beams of different cross sections.
  15. 15. Design beams of various materials.
  16. 16. Compute the deflection of beam using integration or the moment-area method.
  17. 17. Design columns under different support conditions.

Course Objectives

  1. 1. Analyze a stress-strain diagram for a typical structural steel in tension.
  2. 2. Determine the normal stress and strain of members subjected to axial loads.
  3. 3. Determine the shear stress and strain of members subjected to bearing loads.
  4. 4. Compute the stresses in statically indeterminate structures.
  5. 5. Calculate the stresses set up in a bar due to temperature changes.
  6. 6. Explain the changes in stresses action on inclined planes.
  7. 7. Compute the shear stresses of solid or hollow shafts subjected to torques.
  8. 8. Analyze the structural effects of power transmission by circular shafts.
  9. 9. Discuss the shear forces and bending moments on various types of loaded beams.
  10. 10. Derive the relationships between load, shear force, and bending moment for a beam.
  11. 11. Construct shear force and bending moment diagrams for various types of loaded beams.
  12. 12. Develop the deflection curve of a beam.
  13. 13. Compute the normal strains and stresses in beams of different cross sections.
  14. 14. Evaluate the shear stresses in beams of different cross sections.
  15. 15. Design beams of various materials.
  16. 16. Compute the deflection of beam using integration or the moment-area method.
  17. 17. Design columns under different support conditions.