STRU06009 2019 Structural Mechanics 202H
This module studies the state of stress in structural elements resulting from combined loading and examines stress and strain transformation. The fundamental equations governing beam and strut deflections are developed. Unsymmetrical bending is also addressed.
Learning Outcomes
On completion of this module the learner will/should be able to;
Formulate equations governing the unsymmetric bending of beams and analyse the state of stress caused by combined loadings
Transform stress and formulate equations for the analysis of principal stresses and maximum shear stress
Formulate and apply equations for the analysis of plane strain and investigate failure criteria
Examine the moment-curvature relationship and determine the equation of the elastic curve for beam bending
Formulate the fundamental equations defining the buckling of ideal struts
Perform laboratory experiments, interpret results and report findings
Teaching and Learning Strategies
Delivery of material by formal lecture, supplemented by laboratory experimental work (where appropriate) to reinforce key concepts, and augmented by independent learning. To motivate learning, and to enable learners to check their progress towards achieving the learning outcomes, problem sheets are provided.
Module Assessment Strategies
A mix of final semester examination (80%) and practical work and reporting (20%).
An overall pass mark of 40% must be obtained to pass the module.
Repeat Assessments
Learners shall repeat the failed elements. The leaner must then achieve an overall mark of 40% to pass the module
Module Dependencies
Indicative Syllabus
1. Unsymmetric bending.
2. Combined Loading. States of stress caused by combined loadings. Thin-walled pressure vessels.
3. Stress Transformation. Plane stress transformation. General equations of plane stress transformation. Principal stresses and maximum in-plane stress. Mohr's Circle.
4. Strain Transformation. Plane strain. General equations of plane strain transformation. Absolute maximum shear strain. Mohr's Circle. Strain rosettes. Theories of failure.
5. Moment Curvature Relation. The elastic curve. Beam slopes and deflection by integration. Macaulay's method.
6. Struts. Instability. Euler formula for pin-ended struts. Other end conditions.
INDICATIVE PRACTICALS
Problem solving sessions.
Experimental Work:
- Unsymmetric bending.
- Beam deflection. (Cantilever. Simply supported beam).
- Elastic curve (Deflected shape)
- Column buckling (Buckling load of a pinned-end strut. The effect of end conditions on the buckling load)
- Mohr's circle
Coursework & Assessment Breakdown
Coursework Assessment
Title | Type | Form | Percent | Week | Learning Outcomes Assessed | |
---|---|---|---|---|---|---|
1 | Practicals | Practical | Practical Evaluation | 20 % | OnGoing | 6 |
End of Semester / Year Assessment
Title | Type | Form | Percent | Week | Learning Outcomes Assessed | |
---|---|---|---|---|---|---|
1 | Final Exam | Final Exam | Closed Book Exam | 80 % | End of Term | 1,2,3,4,5 |
Full Time Mode Workload
Type | Location | Description | Hours | Frequency | Avg Workload |
---|---|---|---|---|---|
Lecture | Flat Classroom | Presentation of theory | 3 | Weekly | 3.00 |
Supervision | Engineering Laboratory | Experiments & problem solving | 2 | Fortnightly | 1.00 |
Independent Learning | UNKNOWN | Review/study module material | 3 | Weekly | 3.00 |
Module Resources
Hibbeler, R.C. Mechanics of Materials, 10th Edition in SI units, Pearson, 2018
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