Related Course/s:

A unit of study in the Bachelor of Engineering (Mechanical Engineering) and Bachelor of Engineering (Mechanical)/Bachelor of Commerce

Aims & Objectives:

During the unit, we aim:

• To enhance the ability to synthesise and solve problems involving force equilibrium, deformation and stressing of machine components and structures

 At the completion of this unit, students should be able to:

• Enhance the ability to synthesise and solve problems involving force equilibrium, deformation and stressing of machine components and structures
• Analyse the stresses and deflection of plates and thick walled pressure vessels
• Solve problems involving elementary plasticity
• Use finite element package for stress and deformation of practical machine components and structures
• Understand common experimental stress analysis methods

Teaching Methods:

Lectures (36 hrs), Laboratory work (9 hrs), Tutorials (15 hrs)

Assessment:

Final Examination (60-80%), Physical and Finite Element Laboratories & Reports(10-20%), Mid-Semester Test (10-20%).

Generic Skills Outcomes:

• Ability to apply knowledge of basic science and engineering fundamentals
• Ability to communicate effectively, not only with engineers but also with the community at large
• Ability to undertake problem identification, formulation and solution
• Ability to function effectively as an individual and in a multi-disciplinary and multi-cultural teams, with the capacity to be a leader or manager as well as an effective team member
• Understanding of professional and ethical responsibilities and commitment to them
• Expectation of the need to undertake lifelong learning, and capacity to do so

Content:

• Structural theories: Concept of work, conservation of energy, principle of virtual work, strain energy method and Castigliano’s Method
• Variation of stress and strain: Plane stress equilibrium equations in terms of Cartesian and cylindrical co-ordinates, strain-displacement relation, compatibility equations
• Applications of the equilibrium and strain-displacement equations: Stresses in a beam; stresses in a thick-walled cylinder; shrink-fit assembly, compound cylinder; thin Rotating Disc                             
• Elementary plasticity: Plastic bending and plastic collapse
• Thin plates and shells: Basic equations of elastic plate and shell theory, plate subjected to uniform pressure; plate with central circular hole, solid plate central concentrated force, other forms of loading and boundary conditions
• Buckling: Buckling characteristics for real struts; formulae for Euler and local buckling
• Finite element analysis: Principle of the finite element method for beams and solids, modelling techniques, examples of advanced finite element analysis
• Statically indeterminate structures: double integration method and supervision method

Textbooks:

References: