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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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
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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.
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6. Internal resistance of force per unit area
offered by a body against deformation.
P = External force or load
A = Cross-sectional area
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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
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10. Change in dimension of an
object under application of
external force is strain.
Δ L = Change in length
L o = Initial Length
o
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11. 
Strain is positive in tension (>0) and negative in
compression (<0)


Strain is a non-dimensional length
Always a fractional value.
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12. 

Longitudinal Strain
Transverse Strain
POISSON'S RATIO:
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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.
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14. MOMENT STRESS
Stress that occurs due to moment
structural member.
in a
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15. MOMENT STRESS
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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
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17. • Initial straight line
portion
• Max. stress at
about 0.002 strain
• Rupture at about
0.003 strain

19. Compression Controlled Section
Fig. 3c

20. Strain levels At Different Stress Level

21. Strain Level At Balanced Condition
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24. Any Question?
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