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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

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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
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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
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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
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22. 22. Any Question? 24
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