1
2
Shaikh Mahfuzur Rahman
Course No: CE 416
Course Teacher:
Munshi Galib Muktadir & Sabreena Nasrin
(Lecturer)

4th Year 2nd ...
4


Strain-

Longitudinal Strain
Transverse Strain







StressAxial Stress
Moment Stress
Stress Strain Relationship
A...
Internal resistance of force per unit area
offered by a body against deformation.
P = External force or load
A = Cross-sec...
A tension or compression
stress
created
in
a
structural member by the
application of a lengthwise
axial load.*

*Definitio...
8
9
Change in dimension of an
object under application of
external force is strain.
Δ L = Change in length
L o = Initial Lengt...


Strain is positive in tension (>0) and negative in
compression (<0)




Strain is a non-dimensional length
Always a...



Longitudinal Strain
Transverse Strain
POISSON'S RATIO:

12
MOMENT
Moment is the tendency of a body to
rotate about an axis as a result of a force
acting over a lever arm.

13
MOMENT STRESS

Stress that occurs due to moment
structural member.

in a

14
MOMENT STRESS

15
The stress imposed on a
solid body is directly
proportional to the strain
produced, within the
elastic limit.
i.e. ∝  [H...
• Initial straight line
portion
• Max. stress at
about 0.002 strain
• Rupture at about
0.003 strain
Compression Controlled Section

Fig. 3c
Strain levels At Different Stress Level
Strain Level At Balanced Condition

21
23
Any Question?

24
Axial strain (due to axial & moment stress)10.01.03.143
Axial strain (due to axial & moment stress)10.01.03.143
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Axial strain (due to axial & moment stress)10.01.03.143

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This power point presentation on Axial strain (due to axial & moment stress) is presented by me for the partial fulfillment of CE 416 course. I got full marks on this presentation. Thanks those who helped me hugely during preparation of this presentation.

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Axial strain (due to axial & moment stress)10.01.03.143

  1. 1. 1
  2. 2. 2
  3. 3. Shaikh Mahfuzur Rahman Course No: CE 416 Course Teacher: Munshi Galib Muktadir & Sabreena Nasrin (Lecturer) 4th Year 2nd Semester Section: C Student ID: 10.01.03.143 3
  4. 4. 4
  5. 5.  Strain- Longitudinal Strain Transverse Strain     StressAxial Stress Moment Stress Stress Strain Relationship Axial Strain due to Axial Stress & Moment Stress Consideration of Strain in structural design. 5
  6. 6. Internal resistance of force per unit area offered by a body against deformation. P = External force or load A = Cross-sectional area 6
  7. 7. A tension or compression stress created in a structural member by the application of a lengthwise axial load.* *Definition Copyright ©1989 CRC Press LLC 7
  8. 8. 8
  9. 9. 9
  10. 10. Change in dimension of an object under application of external force is strain. Δ L = Change in length L o = Initial Length o 10
  11. 11.  Strain is positive in tension (>0) and negative in compression (<0)   Strain is a non-dimensional length Always a fractional value. 11
  12. 12.   Longitudinal Strain Transverse Strain POISSON'S RATIO: 12
  13. 13. MOMENT Moment is the tendency of a body to rotate about an axis as a result of a force acting over a lever arm. 13
  14. 14. MOMENT STRESS Stress that occurs due to moment structural member. in a 14
  15. 15. MOMENT STRESS 15
  16. 16. The stress imposed on a solid body is directly proportional to the strain produced, within the elastic limit. i.e. ∝  [Hooke's Law] =E E=Young’s Modulus of Elasticity 16
  17. 17. • Initial straight line portion • Max. stress at about 0.002 strain • Rupture at about 0.003 strain
  18. 18. Compression Controlled Section Fig. 3c
  19. 19. Strain levels At Different Stress Level
  20. 20. Strain Level At Balanced Condition 21
  21. 21. 23
  22. 22. Any Question? 24
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