Course Title: Analyse force systems (advanced)
Part B: Course Detail
Teaching Period: Term1 2010
Course Code: CIVE5675
Course Title: Analyse force systems (advanced)
School: 130T Vocational Engineering
Campus: City Campus
Program: C6093 - Advanced Diploma of Engineering Design
Course Contact: Program Manager
Course Contact Phone: +61 3 9925 4468
Course Contact Email: firstname.lastname@example.org
Name and Contact Details of All Other Relevant Staff
Nominal Hours: 60
Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.
Pre-requisites and Co-requisites
EDX130B – Use technical mathematics (basic)
EDX140B – Use technical mathematics (advanced)
EDX100B – Analyse force systems (basic)
This unit covers the competency to extend basic skills and knowledge in calculating forces, moments and stresses to AQF level 5. It brings the level of competency in force and stress analysis to that needed to commence design calculations in either the mechanical or structural field using Australian and/or ISO Design Standards.
National Codes, Titles, Elements and Performance Criteria
National Element Code & Title:
EDX190B Analyse force systems (advanced)
Solve problems using the laws of dry sliding friction.
1.1 The principle of limiting friction and the friction angle can be explained.
Refer to the Elements
Details of Learning Activities
Demonstrate the design process for simple bolted and welded connections using manufacturer’s load capacity tables and appropriate Standards.
Overview the analysis of frames to determine both internal member forces and pin reactions.
Review prior studies in EDX100 covering reactions for determinate structures.
Describe the significance of friction effects in Civil applications, e.g. stability of slopes and retaining walls, and work through sample calculations.
Present formulae and explain the meaning of symbols for thin walled cylinders, shafts, buckling loads and thermal stresses.
Carry out sample calculations on the above.
Participate in individual problem solving activities completed to industry standard related to typical engineering workplace problems requiring determination of:
* Support reactions for determinate structures
* Internal member forces and pin reactions in a truss
* Pin and support reactions for non-coplanar, non-concurrent force system
* Bolt and weld sizes for a connection
* Cylinder wall thickness, shaft sizes, column buckling loads and thermal stresses
* Through discussion determine the effective length of columns in resisting buckling, given examples of end restraints for industrial buildings.
* Collaborate to determine examples of the use of pressure vessels and circular shafts in civil engineering applications.
* Discuss how friction can be of assistance in structural design
See Online Learning Hub for details.
Engineering Mechanics, Val Ivanhoff
Structural Mechanics (Ed. 6), Durka
Overview of Assessment
Assessment are conducted in both theoretical and practical aspects of the course according to the performance criteria set out in the National Training Package. Students are required to undertake summative assessments that bring together knowledge and skills. To successfully complete this course you will be required to demonstrate competency in each assessment tasks detailed under the Assessment Task Section.
Your assessment for this course will be marked using the following table:
NYC (<50%) Not Yet Competent
CAG (50-59%) Competent - Pass
CC (60-69%) Competent - Credit
CDI (70-79%) Competent - Distinction
CHD (80-100%) Competent - High Distinction
Assessment of this unit will involve completion of:
• a two hour mid-semester written examination on Elements 1 – 5
• a two hour end-of-semester written examination on Elements 6 – 11
The format of the examination will include case studies and scenarios based on typical workplace activities to support problem-based assessment of ability to accurately complete calculations to industry standards
Underpinning knowledge and skills
Prerequisite units comprise part of the underpinning knowledge and skills.
Friction:- Coefficient of frictional resistance
Laws of dry sliding friction
The angle of friction
The angle of repose
Friction on inclined planes
Resultant of normal reaction and friction force
Stability – overturning versus sliding
Application to other non-concurrent force systems
Support Reactions:- Types of support
Analysis of support conditions to recognise reactions in known directions
Development of free-body-diagram for solving of support reactions
Application of equations of equilibrium to solving support reactions
Trusses and frames:- Two-force and three-force members
Definition of truss and frame
Solving forces in members of a truss
Method of Joints
Method of Sections
Maxwell Diagrams (combined force polygon)
Solving forces at pins in a frame or machine
Method of Members
Three-dimensional force systems:-
Forces on shafts
Forces on simple three dimensional frames
Solving for forces in three dimensional space
Centrally loaded connections:-
Shear, tensile and bearing stresses
Threads in the shear plane
Extraction of appropriate area from bolt data tables
Centrally loaded welded connections
Fillet and butt welds
Method of failure
Size and length of weld required
Thin walled pressure vessels:-
Definition of thin walled
Concepts of longitudinal and hoop stress
Determination of longitudinal stress
Determination of hoop stress
Buckling loads:- Principles of buckling
Analysis of fixing conditions
Determination of effective length
Determination of slenderness ratio
Choice of Euler or Johnson formula
Application of Johnson or Euler formula to determine buckling load.
Thermal expansion and stress:-
Coefficient of linear expansion
Thermal stresses in single members
Full and partial restraint
Torsional shear stress:- Torque diagrams
Angle of twist
Torsional shear stress formula
Design of simple shafts using shear stress formula
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