MEEN3002W Solid Mechanics 2

Academic Year 2022/2023

Syllabus:
Introduction to 2D states of stress and strain: stress transformations, principal stresses, maximum shear stress, Mohr's circles of stress and strain, Hooke's law. Strain measurement using strain gauge rosettes. Thin walled pressure vessels.
Introduction to 3D states of stress and strain. Mohr's circle in 3D. Combinations of axial, torsional and bending loading. Yield criteria.
The use of the Unit Load energy method in structural analysis.
Torsion of non-circular sections. The Prandtl stress function. Analysis of solid elliptical, rectangular, narrow rectangular and developed cross-sections, and thin-walled closed cross-sections.
Introduction to fatigue analysis of shafts subjected to a combination of bending, torsion and axial loading.

Laboratory Exercises:
Lab 1: One of the following experiments will be performed by a given group:
(a). Experimental verification of the maximum shear stress yield criterion for a ductile metallic test specimen subjected to combined bending and torsional loading. OR (b). The use of the Unit Load energy method to determine deflections in structures subjected to bending loads.

Lab 2: Introduction to finite element stress analysis. Determination of the state of stress in a typical engineering structure or component.

Note: Lab reports are to be handed in within two weeks after the date of the lab activity.

Assignments: Two homework assignments will be set during the course of the trimester. Students will typically be given two weeks to complete each assignment.

Recommended Texts: Benham, P. P., Crawford, R. J. Armstrong, C. G., Mechanics of Engineering Materials, 2nd edition, Prentice Hall, 1996.

Reading List:
Course Notes (provided).
G. E. Mase, Theory and Problems of Continuum Mechanics, Schaum's Outline Series, McGraw-Hill, Inc. 1970 (selected chapters

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Curricular information is subject to change

Learning Outcomes:

On successful completion of this subject the student will be able to:
1. Analyze 2D states of stress and strain, sketch Mohr's Circles and calculate principal values and corresponding principal directions.
2. Analyze 3D states of stress and strain, sketch Mohr's Circles and calculate the principal values and corresponding principal directions of stress and strain tensors.
3. Confidently analyze the state of stress caused by a combination of axial, torsional and bending loads and determine the resulting factor of safety against yielding.
4. Calculate the required diameter or the factor of safety of a shaft subjected to fatigue loading.
5. Perform a finite element stress analysis of a simple engineering component.
6. Present and justify the main assumptions and findings in formulating and solving the stress analysis problems encountered in the course.

Student Effort Hours: 
Student Effort Type Hours
Autonomous Student Learning

70

Lectures

36

Practical

6

Total

112

Approaches to Teaching and Learning:
Module delivery is based around weekly lectures, and two Laboratory sessions. 
Requirements, Exclusions and Recommendations

Not applicable to this module.


Module Requisites and Incompatibles
Additional Information:
This module is delivered overseas and is not available to students based at the UCD Belfield or UCD Blackrock campuses


 
Assessment Strategy  
Description Timing Open Book Exam Component Scale Must Pass Component % of Final Grade
Examination: Exam 2 hour End of Trimester Exam No Graded No

60

Continuous Assessment: 2 Quiz assessments Throughout the Trimester n/a Graded No

20

Lab Report: Marks based on one laboratory assignments Varies over the Trimester n/a Graded No

20


Carry forward of passed components
Yes
 
Remediation Type Remediation Timing
In-Module Resit Prior to relevant Programme Exam Board
Please see Student Jargon Buster for more information about remediation types and timing. 
Feedback Strategy/Strategies

• Group/class feedback, post-assessment
• Online automated feedback

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