# MECH08005 2020 Applied Mechanics

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**Description**

This module builds on the learning from mechanics and materials previously covered, and studies stress in bending and deflection of beams in bending, plus eccentric load and stress concentration.

### Learning Outcomes

*On completion of this module the learner will/should be able to;*

**1.**

Compute the stress in pressure vessels which do not fulfil the criteria of being thin walled.

**2.**

Analyse the stress in bending of commonly used cross sections.

**3.**

Compute the stress when the loads are not applied centrally.

**4.**

Calculate the slope and deflection of beams in bending.

**5.**

Use the relationship between the elastic constants to determine their values.

**6.**

Analyse the stress induced at discontinuities such as holes drilled into components.

**7.**

Determine the safe working loads for columns which are resisting axially compressive loads.

### Teaching and Learning Strategies

There will be 4 hours of lectures, where the theory will be covered and multiple examples demonstrated. Each week there will also be a tutorial or practical based on the previous weeks lecture.

### Module Assessment Strategies

The learning outcomes may be assessed by laboratory reports or assignments, plus assessments at various times during the semester plus an end of semester examination

### Repeat Assessments

Repeat assessment will be by way of sitting another examination on the subject. Alternatively, at the discretion of the lecturer, assignments covering the deficient areas of the course may be set.

### Indicative Syllabus

**Bending stresses**: Use the σ / y= M / I= E / R formula determine the stress induced on both surfaces when a beam is being bent.

**Deflection and slope of beams**: Determine how much a beam will bend when a bending stress is applied.

**Eccentric loading**: When a load is applied off-centre it will cause bending to occur, students will calculate the stress induced due to the eccentricity of the load.

**Relationship between elastic constants and use of strain gauges**: How do Young's Modulus, Modulus of Rigidity, Poisson's ratio and Bulk Modulus relate to each other.

**Stress concentration**: Stress builds up more where there are discontinuities such as a hole or a fillet. Engineers need to be able to determine the stress where these appear in their designs, so their designs do not unexpectedly fail.

**Buckling of columns**: When an axial compressive load is applied to a column it may buckle or bend and fail catastrophically. Use the correct formula for the fixings used to determine the critical load for the column.

**Thick walled pressure vessels**: Use Lame's equations to determine the stress on the inner and out surfaces of non thin walled pressure vessels.

### Coursework & Assessment Breakdown

**Coursework & Continuous Assessment**

**End of Semester / Year Formal Exam**

### Coursework Assessment

Title | Type | Form | Percent | Week | Learning Outcomes Assessed | |
---|---|---|---|---|---|---|

1 | Tutorials | Coursework Assessment | Assessment | 30 % | OnGoing | 1,2,3,4,5,6,7 |

### End of Semester / Year Assessment

Title | Type | Form | Percent | Week | Learning Outcomes Assessed | |
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1 | Final Exam | Final Exam | Closed Book Exam | 70 % | End of Semester | 1,2,3,4,5,6,7 |

### Full Time Mode Workload

Type | Location | Description | Hours | Frequency | Avg Workload |
---|---|---|---|---|---|

Lecture | Flat Classroom | Lecture | 4 | Weekly | 4.00 |

Tutorial | Engineering Laboratory | Tutorial or demonstration | 1 | Weekly | 1.00 |

### Online Learning Mode Workload

Type | Location | Description | Hours | Frequency | Avg Workload |
---|---|---|---|---|---|

Online Lecture | Not Specified | Online lecture | 1.5 | Weekly | 1.50 |

Tutorial | Not Specified | Online tutorial or assignment | 1 | Weekly | 1.00 |