Last modified: 31 May 2022 13:05
This course examines the relationship between structure and properties of materials. Throughout, the properties of materials are considered in terms of their applications and in the context of design. The concepts of equilibrium, stress and strain are used to examine the safety and serviceability of elastic structures and components, including beams, columns and shafts. Two dimensionals stress analysis is considered briefly.
The course is only available to students on the Graduate Apprenticeship in BEng in Civil Engineering.
| Study Type | Undergraduate | Level | 2 |
|---|---|---|---|
| Term | Second Term | Credit Points | 15 credits (7.5 ECTS credits) |
| Campus | Aberdeen | Sustained Study | No |
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The course covers the following areas:
Stress Analysis
1. Review of stresses and strains; elastic stress-strain relations: Young's modulus, Poisson's ratio, and shear modulus; extensional stiffness; thermal strains and stresses
2. Membrane stresses: Thin-walled circular cylindrical and spherical vessels subject to internal pressure
3. Torsion and torsional shear stresses in solid and hollow circular sections. Polar second moment of area, angle of twist. Torsional stiffness. Transmission of power by circular shafts. Combined torsion and direct stress.
Mechnical Behaviour of Solids
4. Significance of defects and stress concentration in engineering design; origin of notches, defects and cracks: sharp corners, surface roughness, joining defects, porosity, inclusion of foreign objects; stress concentration factor.
5. Introduction to brittle fracture: Strain energy, surface energy and theoretical strength of solids; fracture toughness parameter, Kc and its applications.
6. Enhancement of fracture toughness, strength and stiffness: reinforced concrete, toughened glass, composites.
7. Introduction to fatigue: description of fatigue, its occurrence, S-N curves and design implications.
8. Non-destructive evaluation (NDE) of structures: Ultrasonic methods, magnetic particle inspection, dye penetrant, radiography, acoustic method; introduction to strain gauges.
Structural Analysis
9. Theory of elastic bending of beams, distribution of bending stress and strain. Radius of curvature, second moments of area, parallel axis theorem, section modulus.
10. Deflection of beams using integration method; bending stiffness.
11. Combined bending and direct stresses. Middle third rule.
12. Buckling of ideal columns. Concepts of effective length.
13. Virtual work. Deflections of trusses.
14. Shear stress distributions for rectangular and l-sections beams.
Design Applications
15. Selection of material and shape for strength and stiffness limited designs; application of CES software.
Information on contact teaching time is available from the course guide.
| Assessment Type | Summative | Weighting | 80 | |
|---|---|---|---|---|
| Assessment Weeks | 40,41,42 | Feedback Weeks | 44,45 | |
| Feedback |
Feedback will be provided to the entire class in a summary of cohort exam performance, and on an individualised basis to students on request. |
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| Knowledge Level | Thinking Skill | Outcome |
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| Assessment Type | Summative | Weighting | 20 | |
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| Assessment Weeks | 33 | Feedback Weeks | 35 | |
| Feedback |
Feedback will be provided on MyAberdeen as comments on a marked up lab report. |
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| Knowledge Level | Thinking Skill | Outcome |
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There are no assessments for this course.
| Assessment Type | Summative | Weighting | 100 | |
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| Assessment Weeks | 48,49,50 | Feedback Weeks | 1,2,52 | |
| Feedback |
Individualised feedback available to student on request. |
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| Knowledge Level | Thinking Skill | Outcome |
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| Knowledge Level | Thinking Skill | Outcome |
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| Factual | Remember | ILO’s for this course are available in the course guide. |
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