MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012
Transcript of MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012
![Page 1: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/1.jpg)
MMAN3400 MECHANICS OF SOLIDS 2
SEMESTER 1 2012
![Page 2: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/2.jpg)
CONTENTS
Page
COURSE STAFF 3
COURSE DETAILS 3
COURSE AIMS 4
STUDENT LEARNING OUTCOMES 4
MAPPING OF GRADUATE ATTRIBUTES TO THE ENGINEER AUSTRALIA
CATEGORIES 5
RATIONALE BEHIND THE APPROACH TO LEARNING,
TEACHING AND TEACHING STRATEGIES 5
ASSESSMENT 6
COURSE SCHEDULE 8
RESOURCES FOR STUDENTS 11
COURSE EVALUATION AND DEVELOPMENT 12
ACADEMIC HONESTY AND PLAGRIARISM 13
ADMINSTRATIVE MATTERS 14
![Page 3: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/3.jpg)
MMAN3400 MECHANICS OF SOLIDS 2
COURSE OUTLINE
COURSE STAFF
Contact details and consultation times for course convener
Dr Kana Kanapathipillai
Room ME120
Tel (02) 9385 4251
Fax (02) 96631222
Email [email protected]
Dr M Chowdhury
Room ME118
Tel (02) 9385 4119
Fax (02) 9663 1222
Email [email protected]
Dr N Feng
Room ME320
Tel (02) 9385 5696
Fax (02) 9663 1222
Email [email protected]
Prof E Hahn
Room ME219
Tel (02) 9385 4122
Fax (02) 9663 1222
Email [email protected]
Generally, tutorial time should be used for direct consultation. Following tutorial, if you need
further consultation then you may use phone or email for making an appointment for further
consultation.
COURSE DETAILS
Units of credit
This is a 6 unit-of-credit (UoC) course, and involves 6 hours per week (h/w) of face-to-face
contact.
UNSW expects that you will put in, on average, about 46 h/w for 24 UoC (including both in-
class and out-of-class time) for an effective 14 weeks of the semester (12 weeks plus stuvac
plus one effective exam week) for an average student aiming for a credit grade. Various
![Page 4: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/4.jpg)
factors, such as your own ability, your target grade, etc., will influence the time needed in
your case. Some students spend much more than 46 h/w, but you should aim for not less than
46 h/w on coursework for 24 UoC.
This means that, for this course, you should aim to spend not less than an additional six hours
per week of your own time. This should be spent in making sure that you understand the
lecture material, completing the set tutorial problems and further reading about the course
material.
Parallel teaching
There is no parallel teaching in this course.
COURSE AIMS
Course aims
The course aims include developing and further your skill in solving technical problems and
familiarizing you with analysis: of membrane stresses in axisymmetric thin shells, stresses in
long thin beams, buckling of columns, torsion of thin tubes, deflection analysis, statically
indeterminate beams. You also will learn elementary concepts in the area of mechanics of
fracture and fatigue. Knowledge of these topics is vital in design, analysis and integrity
assessment of mechanical systems.
How the course relates to other course offerings and overall program(s) in the discipline
This is a third year course in the area of mechanics of solids. Having learnt the basis of statics
in MMAN1300 and elementary topics in area of the mechanics of solids including basic
stress/strain analyses in MMAN2400, this course applies the knowledge obtained in the
previous static and mechanics of solids courses to analysis of thin shells, beams and columns
as well as introduces the students to some advanced topics in mechanics of solids such as
mechanics of fracture and fatigue.
STUDENT LEARNING OUTCOMES
By the end of this course it is expected that you will learn the following topics:
Membrane stresses in axisymmetric shells/vessels
Simple bending, moment and product of inertia of an area
Unsymmetrical bending of beams
Bending of composite beams, reinforced concrete beams
Transverse shear stresses in beams.
Shear centre
Column buckling
Torsion of thin tubes
Deflection analysis of trusses
Deflection analysis of long thin beams
Analysis of statically indeterminate beams
![Page 5: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/5.jpg)
Introduction to mechanics of fracture and fatigue
Develop further your skill of technical problem-solving
Develop further your teamwork capacity
Develop further your capacity for analysis of technical problems.
MAPPING TO GRADUATE ATTRIBUTES
The UNSW graduate attributes are listed at:
www.secretariat.unsw.edu.au/acboard/approved_policy/graduate_attributes.pdf and the
Faculty of Engineering graduate attributes (contextualisation of the UNSW graduate
attributes) are listed at: www.ltu.unsw.edu.au/content/userDocs/GradAttrEng.pdf.
The objectives, outcomes, assessments, structure and contents of this course will contribute to
your skill development in the following graduate attributes set by the UNSW Faculty of
Engineering:
Ability to keep abreast with the pertinent topics in mechanics of solids covered in this
course.
Ability to continue learning.
An in-depth appreciation of the topics covered in the course.
Ability to analyse critically various topics in mechanics of solids.
Ability to apply the knowledge obtained in this course to various industrial problems.
Ability to competently analyse solid mechanics problems.
Ability to find pertinent information as required.
Ability to critically determine what techniques are appropriate.
Ability for independent learning.
Ability to communicate effectively.
In depth technical knowledge in mechanics of solids.
Ability to undertake problem identification, formulation and solution in the area of
mechanics of solids.
Ability of function effectively to solve technical problems as an individual.
Understanding of some of the professional and ethical responsibilities.
Expectation of the need to undertake lifelong learning.
RATIONALE BEHIND THE APPROACH TO LEARNING, TEACHING AND
TEACHING STRATEGIES
The teaching strategies that will be used and their rationale
The teaching strategies that will be used include:
Presentation of the material in weekly lectures so that the students develop
understanding of the underlying concepts of the various topics covered in the course.
Provision of weekly supervised tutorials where students can obtain assistance and
develop their skill in solving technical problems.
Provision of laboratory classes where students work in teams to perform physical
experiments, analyse data and produce pertinent reports about which students will
receive feedbacks.
![Page 6: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/6.jpg)
Suggested approaches to learning in the course
Regular attendance and participation in lectures, tutorials and laboratory classes
Diligence in working through the set tutorial problems in preparation for examinations
Effectively utilising the tutors
Additional reading on, and about the material presented in lectures to broaden the
students understanding
Practicing past examination questions in preparation for examinations
Working effectively with other students in carrying out the laboratory experiments.
Further comments on teaching
Teaching ranks amongst the nation‟s top prestigious professions where one is involved in
shaping the future of the country. Understanding how students learn is one of the significant
aspects of teaching. This is linked to their knowledge, background and maturity. The key is to
relate to the students by starting from what they know in elementary courses in the area of
solid mechanics and building upon it. The topics covered in this course are applied fields
where students constantly apply the fundamental concepts and theory learned in the classroom
to analysis of various components. My main goal is to encourage independent thinking and
analytical reasoning to augment students‟ problem solving skills. During the lectures, I
prompt students to question at every stage: ‟why‟, ‟how‟ the problem at hand should be
tackled. My favourite approach is: “If you don‟t have any question I have some for you”. This
may lead to classroom discussions and/or several intellectually stimulating
questions/arguments which are not easy to answer.
While this course uses a textbook, I believe that there should be enough room for flexibility
and I tend to adapt to the students‟ requirements as the course proceeds. Therefore, additional
materials to those described in the textbook may be covered in the lectures or alternatively not
all materials described in the textbook may be referred to in the lectures.
The format employed in this course combines face-to-face lectures, interactive tutorial
sessions as well as laboratory classes. The students work within a team during the two
physical laboratory experiments but each individual has to provide an independent report. In
addition, each student has to take individual initiative to carry out the finite element
laboratory and analysis the „shear-centre‟ of a beam before the pertinent material is covered in
the lecture.
ASSESSMENT
Overall rationale for assessment components and their relationship with specific student
learning outcomes
This course will be assessed by in-semester quizzes and tests, laboratory reports and a final
formal examination. The topics covered in all assessments are directly related to the expected
outcomes listed before. All assessments are CLOSED BOOK.
![Page 7: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/7.jpg)
Details of each assessment component, the marks assigned to it, and the dates of
submission
Assessment
Mark 2 Laboratory classes 10%
Quizzes 1, 2, 3 and 4 through semester 20%
End-of-Block 1 Exam 35%
Final Formal Exam at the end of semester 35%
Total 100% In order to pass the course, you must achieve a total mark of 50% or higher. Supplementary
examinations will not normally be granted unless you have a valid special consideration.
You will need to provide your own calculator, of a make and model approved by UNSW,
for the examination. The list of approved calculators is shown at:
https://my.unsw.edu.au/student/academiclife/assessment/examinations/Calculator.html It is
your responsibility to ensure that your calculator is of an approved make and model, and to
obtain an “Approved” sticker for it from the School Office or the Engineering Student Centre
prior to the examination. Calculators not bearing an “Approved” sticker will not be allowed
into the examination room.
Four Quizzes will be held in the tutorial classes on Wednesdays during tutorial time periods.
Approximately, Quiz 1 will be held on Wednesday 14th
March (Week 3) from 6-7 pm, Quiz
2 will be held on Wednesday 28 March (Week 5) from 6-7 pm, Quiz 3 will be held on
Wednesday 02nd
May (Week 9) from 6-7 pm and Quiz 4 will be held on Wednesday 16th
May (Week 11) from 6-7 pm. The students‟ grouping for quizzes will be announced during
lectures in due course. The above-mentioned dates might be changed depending on progress
in lectures. If so, the new dates, time and venues for the quizzes will be announced during the
lectures.
End-of-Block 1 Exam covering all topics in Block 1 will approximately be held in Centre
Lecture Block 8 from 4 – 6 pm on Monday 16th
April (Week 7). This date might be changed
depending on progress in lectures. If so, the new date, time and venues for this exam will be
announced during the lectures.
Laboratory experiments and reports: A standard specification is available from the School
office to aid presentation of your laboratory reports (in all courses). All submissions should
have a standard School cover sheet. All submissions are expected to be neatly typed and
clearly set out. All calculations (may be hand-written) should be shown as, in the event of
incorrect answers, marks are mainly awarded for method and understanding.
The preferred set-out of any numerical calculation is similar to the following:
= (Equation in symbols)
= 1.025 200 (Numbers substituted)
= 205 t (Answer with units)
![Page 8: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/8.jpg)
Late submission
You need to submit your two laboratory reports no later than 10 am Thursday 26 April
(Week 9) to the Solid Mechanics Laboratory (L101). Due to large number of students and
heavy marking load, no late report will be accepted.
Marking Criteria
Quizzes and Exams: In marking the quizzes and exams the major portion of the marks will
be allocated to correct drawing of any pertinent free-body diagrams and correct method of
solution.
Laboratory Reports: In marking the laboratory reports, particular attention will be paid to
correct and neat presentation of the data, calculations and comprehensive discussion and
conclusions.
COURSE SCHEDULE
Lectures:
All lectures in this course are given by the convenor and they are held on Mondays 4pm to 6
pm in Centre Lecture Block 8 and on Wednesdays from 1 pm to 3 pm in Centre Lecture
Block 6.
Tutorial classes:
The tutorials will be held on Tuesdays 12-1 pm in Rooms ME401 (Dr Kanapathipillai), Tyree
Energy Technology LG07 (Dr Chowdhury), OMB145 (Dr Feng) and Rupert Myers Theatre
G90 (Prof Hahn) and on Wednesdays 6-7 pm in ME303 (Dr Kanapathipillai), ME403 (Dr
Chowdhury), ME402 (Dr Feng) and ME304 (Prof Hahn).
Laboratory classes:
There are two laboratory classes holding in the Solid Mechanics Laboratory (L101) from
Week 2 to Week 7 during the above-mentioned tutorial periods requiring individual written
reports. All of you including those who are repeating this course are required to carry
out the laboratory experiments and produce reports. In relation to these two laboratory
classes, you have been allocated to small groups the details of which together with the exact
dates and time slots are posted on the main door of L101, Blackboard Web site and Dr
Kanapathipillai‟s office door (Room ME120).
![Page 9: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/9.jpg)
Table 1 (Block 1) describes lectures, tutorial and laboratory classes for fundamental topics
and Table 2 (Block 2) describes lectures, tutorial and laboratory classes for more advanced
topics. The schedule shown may be subject to change at short notice to suit exigencies.
Table 1: BLOCK 1 – Fundamental Topics
Approx
Week –
Day
Topic Textbook -
Notes
Ref & Tut Questions Tut/Lab/Quiz
1 –
Mon &
Wed
Membrane
stresses in
axisymmetric
shells/vessels.
Web Notes
+ Hibbeler:
Ch 8.1
Blackboard-Web Tut Questions
+ Hibbeler: 8-3, 8-4,8-5,8-7,8-
14
No Tutorial
2 –
Mon
Moment of
Inertia of an
Area &
Product of
Inertia of an
Area.
Hibbeler:
Appendices
A.1 to A.5
Hibbeler: Examples A.1 to A.5
Laboratory /
Tutorial
(Tue & Wed)
2 –
Wed
Simple
bending:
Flexure
Formula
Hibbeler:
Ch 6.3 &
6.4
Hibbeler: 6-47,6-48,6-53,
6-55,6-56,6-66,6-69,6-72,6-
76,6-80,6-93,6-96,6-102
Laboratory /
Tutorial
(Tue &Wed)
3 –
Mon
Unsymmetric
bending
Hibbeler:
Web Notes
+ Ch 6.5
Hibbeler: 6-110,6-111,6-112,
6-116,6-121,6-124,6-126 Quiz 1 (Wed)
(No Labs &
No Tutorial
on Wed)
Laboratory /
Tutorial
(Tues)
3 –
Wed
Composite
Beams
Hibbeler:
Ch 6.6 &
6.7
Hibbeler: 6-127,6-128,6-131,
6-135,6-136,6-138,6-142
Laboratory /
Tutorial
((Tue &Wed)
4 –
Mon
Transverse
shear stresses
in beams.
Hibbeler:
Ch 7.1 to
7.5
Hibbeler: 7-3,7-6,7-13,7-15,
7-23,7-25,7-29,7-37,7-39,7-
42,7-42,7-45,7-47,7-48
Laboratory /
Tutorial
(Tue & Thu)
4 –
Wed
Transverse
shear stresses
in beams
Hibbeler:
Ch 7.1 to
7.5
Hibbeler: 7-3,7-6,7-13,7-15,
7-23,7-25,7-29,7-37,7-39,7-
42,7-42,7-45,7-47,7-48
Laboratory /
Tutorial
(Tue &Wed))
5 –
Mon
Shear Centre.
Hibbeler:
Ch 7.6
Hibbeler: 7-50,7-58,7-60,7-
61,7- 65,7-67,7-69, 7-70 Quiz 2 (Wed)
(No Labs &
No Tutorial
on Tue)
Laboratory /
Tutorial
(Tues)
5 –
Wed
Column
buckling:
Hibbeler:
Ch 13.1 to
13.3
Hibbeler: 13-1,13-2,13-4,13-
6,13-12,13-13,13-14,13-24,13-
26,13-28,13-35,13-37,13-40,13-
41
Laboratory /
Tutorial
(Tue &Wed)
![Page 10: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/10.jpg)
Table 1: BLOCK 1 - Fundamental Topics – Continued
Approx
Week –
Day
Topic Textbook -
Notes
Ref & Tut Questions Tut/Lab/Quiz
6 –
Mon
Column
buckling:
Hibbeler:
Ch 13.1 to
13.3
Hibbeler: 13-1,13-2,13-4,13-
6,13-12,13-13,13-14,13-24,13-
26,13-28,13-35,13-37,13-40,13-
41
Laboratory /
Tutorial
(Tue &Wed)
6 –
Wed
Review of all
above (Block
1) topics
Laboratory /
Tutorial
(Tue &Wed)
7 –
Mon End of Block
1 Exam
All above
topics Will be held on Monday from
4 pm to 6 pm in CLB 8
Laboratory /
Tutorial
(Tue &Wed)
Table 2: BLOCK 2 – Advanced Topics
Approx
Week -
Day
Topic Textbook -
Notes
Ref & Tut Questions Tut/Lab/Quiz
7 –
Wed
Torsion of
prismatic and
thin-walled
tubes having
closed cross-
section
Hibbeler:
Ch 5.7
Hibbeler: 5-108 to 5-119 Laboratory /
Tutorial
(Tue &Wed)
8 -
Mon
Principle of
virtual work
Hibbeler:
Ch 14.1 to
14.3, 14.5
Hibbeler: 14-25 to 14-36 Laboratory /
Tutorial
(Tue &Wed)
8 - Wed Principle of
virtual work
applied to
trusses
Hibbeler:
Ch 14.6
Hibbeler: 14-72 to 14-86 Laboratory /
Tutorial
(Tue &Wed)
9 –
Mon
Principle of
virtual work
applied to thin
and long
beams
Hibbeler:
Ch 14.7
Hibbeler: 14-87 to 14-122
Quiz 3 (Tue)
(No Labs &
No Tutorial
on Wed
Tutorial
(Tues)
9 - Wed Statically
indeterminate
beams &
shafts –
Superposition
method
Hibbeler:
Ch 12.9 &
5.5
Hibbeler: 12-121 to 12-136 &
5-73 to 5-87
Tutorial
(Tue & Thu)
Deadline for
lab reports
10 –
Mon
Fracture
Mechanics
WebCT
Notes
Blackboard-Web Tut Questions Tutorial
(Tue & Thu)
![Page 11: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/11.jpg)
Table 2: BLOCK 2 – Advanced Topics – Continued
Approx
Week - Day
Topic Textbook
– Notes
Ref & Tut Questions Tut/Lab/Quiz
10 - Wed Stress
intensity
factor &
Various
methods of
determining
stress
intensity
factors
including
FEM (crack-
tip modelling)
and typical
values)
WebCT
Notes
Blackboard-Web Tut
Questions
Tutorial
(Tue &Wed)
11 – Mon Fracture
criterion,
Fracture
toughness
WebCT
Notes
Blackboard-Web Tut
Questions
Quiz 4 (Tue)
(No Labs & No
Tutorial on
Wed)
Tutorial
(Tues)
11 - Wed Crack growth
due to fatigue
& its FE
modelling,
Paris &
Forman
equations
WebCT
Notes
Blackboard-Web Tut
Questions
Tutorial
(Tue &Wed)
12 –Mon&
Wed
Review Tutorial
(Tue &Wed)
13 –Mon &
Wed
No Lectures Tutorial
(Tue &Wed)
RESOURCES FOR STUDENTS
Textbook details, including title, publisher, edition, year of publication and availability
(in bookshop, UNSW library)
Textbook details
(1) R. C. Hibbeler, “Mechanics of Materials”, 8th
Ed. In SI Units, 2011, Pearson/Prentice
Hall.
(2) Notes on the Membrane Stresses in Thin Axisymmetric Shells – see Blackboard-Web.
(3) Notes on the Mechanics of Fracture and Fatigue – see Blackboard-Web.
![Page 12: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/12.jpg)
(4) Supplementary tutorial problems some of which are based on past exam questions -
see Blackboard-Web.
Copies of the above book are kept in the Main Library:
info.library.unsw.edu.au/web/services/teaching.html
List of required and suggested additional readings and availability (in bookshop, UNSW
library)
Any book on the mechanics of solids and mechanics of materials.
Additional materials provided in Blackboard-Web
This course has a website on Blackboard-Web. It includes:
Course outline
Notes on the membrane stresses in thin axisymmetric shells
Notes on unsymmetric bending of beams
Samples of past assessments
Supplementary tutorial questions
The list of summary of equations provided in assessments
Laboratory group allocations and timetable.
Recommended Internet sites
There are many websites concerning mechanics of solids and materials. Try searching using
the above-mentioned topics as the keywords.
Other Resources
If you wish to explore any of the lecture topics in more depth, then other resources are
available and assistance may be obtained from the UNSW Library. One starting point for
assistance is:
info.library.unsw.edu.au/web/services/services.html.
COURSE EVALUATION AND DEVELOPMENT
Your feedback is gathered periodically using various means, including the Course and
Teaching Evaluation and Improvement (CATEI) process, informal discussion in the final
tutorial class for the course, and the School‟s Student/Staff meetings.
Your feedback on this course is considered carefully and is taken seriously with a view to
acting on it constructively wherever possible. Continual improvements are made to the course
based, in part, on such feedback. In this course, a recent improvement was in providing notes
for some topics that are not adequately covered in the textbooks on BlackBoard.
![Page 13: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/13.jpg)
ACADEMIC HONESTY AND PLAGIARISM
The following extract must appear in all course outlines:
![Page 14: MMAN3400 MECHANICS OF SOLIDS 2 SEMESTER 1 2012](https://reader034.fdocuments.us/reader034/viewer/2022051711/586688551a28abb73f8b692a/html5/thumbnails/14.jpg)
Further information on School policy and procedures in the event of plagiarism is presented in
a School handout, Administrative Matters for All Courses, available from the School office
separately or as part of The Guide.
ADMINISTRATIVE MATTERS
Information about each of the following matters is presented in a School handout,
Administrative Matters for All Courses, available from the School office separately or as part
of The Guide.
It is essential that you obtain a copy, read it carefully and become familiar with the
information, as it applies to this course and to each of the other courses in which you are
enrolled.
Expectations of students (including attendance at lectures and tutorials/laboratory
classes/seminars; and computer use, for example, in the use of email and online
discussion forums)
Procedures for submission of assignments and the School’s policy concerning late
submission
Information on relevant Occupational Health and Safety policies and expectations can
be found at: www.ohs.unsw.edu.au
The student support services link is now: www.studentequity.unsw.edu.au
Examination procedures and advice concerning illness or misadventure
Equity and Disability
Students who have a disability which requires some adjustment in their teaching or learning
environment are encouraged to discuss their study needs with the course convenor prior to, or
at the commencement of, their course, or with the Equity Officer (Disability) in the Student
Equity and Disability Unit (SEADU) by phone on 9385 4734, email [email protected] or
via the website www.studentequity.unsw.edu.au/content/default.cfm?ss=0. The office is
located on the Ground Floor of the Goodsell building (F20).
Issues to be discussed may include access to materials, signers or note-takers, the provision of
services and additional exam and assessment arrangements. Early notification is essential to
enable any necessary adjustments to be made.
Dr Kana Kanapathipillai
February 2012