Taiwo Atinsola

Hello Taiwo,

You made a valiant effort to obtain the component representation of the third invariant of the second-order tensor. You are generally on the right track but you did not express the scalar product completely in the component form as you should have done. Since a scalar triple product is a scalar, you should be able to express it completely without any vector basis. I have decided to work it out fully for the class and my notes from now on will carry the explanation I am supplying below:

Download (PDF, 245KB)

This should provide a complete answer to what you were trying to do. If you have further questions, please comment below.

Mr Emmanuel Olanrewaju

It is with a deep sense of loss that the Faculty of Engineering announces the passing of Mr Emmanuel Olanrewaju.

Until he passed on two days ago, Mr Olanrewaju was a 400 level student in the Department of Mechanical Engineering and was in fact writing his semester examinations at the time of the incident. Our hearts and condolences go to the parents and the entire family that are in deep mourning at this time. We also greet the fellow students, course mates and all other colleagues of the late Mr Olanrewaju.

OA Fakinlede

Professor Henry Ehikpehale Enahoro

The Faculty of Engineering mourns the passing of our former dean, Professor Henry Ehikpehale Enahoro. His death occurred in Sydney Australia where his last academic engagement was as Professor Emeritus in the Department of Mechanical Engineering of the University of New South Wales. Born 11th March 1929 in Uromi, Edo State the gentle professor HE Enahoro passed away after a long illness on June 13th 2014. He is survived by his wife, Mrs Dianne Enahoro, and two surviving children, Elizabeth and Christopher. Another child, Rebecca, did not outlive the late professor. He is from the illustrious Enahoro clan of Uromi and brother to both late Anthony Enahoro – best known as the mover of the motion for Nigeria’s independence – and the celebrated journalist, Peter Enahoro.

Professor Enahoro attended Kings College, Lagos and obtained his Bachelor’s degree in Mechanical Engineering at the University of Manchester, England. In 1963, he completed the PhD in Mechanical Engineering and Applied Mechanics with a thesis titled “Effect of cold-working on chip formation in metal cutting” at the University of Sheffield, Bedford, England. He was for many years a lecturer at the University of South Wales, Sydney, Australia before becoming a professor at the University of Lagos in 1975. He was appointed the HOD of Mechanical Engineering and became dean later the same year until 1977.

Professor HE Enahoro taught Strength of Materials and the Theory of Plasticity at both undergraduate and graduate levels in the department of Mechanical Engineering. In 1976, he was supervisor of the undergraduate project for Professors AO Oyediran and OA Fakinlede (current dean). Professor Umunna Okoli – our external examiner and former dean of Engineering at the University of Port Harcourt was his first PhD student here at the University of Lagos.

There is an electronic condolence Register located at http://tributes.smh.com.au/obituaries/smh-au/obituary.aspx?pid=171372856 while a paper register will be opened at the dean’s office on Monday, June 30, 2014. A Funeral Service was be held in his honour on Thursday, (June19, 2014) at St Brigid’s Church, Corner of Brook and Waltham Street Coogee, Sydney, Australia. Other arrangements in Nigeria are to be as announced by the family. May his soul rest in peace.

OA Fakinlede
Dean Engineering.

Osezua Ibhadode

As I had written in the post on the current slides, I am responding to Osezua Ibhadode’s questions.

Download (PDF, 219KB)

Of course the solution here is direct and laborious. It is after you have gone through such labor that the patterns emerge: The fact that the Kronecker Delta is a “substitution operator” becomes clear. The final answer will be immediately obvious to you after you have fully understood that. That understanding will constantly elude any student who will not do this labor in the first instance.

Mechanical ’84 Set

After two false starts, a long-awaited reunion with some members of the 1984 set finally took place in the deans office on Thursday, June 26 2014. The drama of the meeting was immediate: The present dean was a graduate assistant when they were first year students in 1979. At that time I assisted Dr Guillien Preckler to instruct in their Engineering Mathematics in the old room 106 – now renamed LG Design Laboratory. Naturally, we went to visit the site to see what changes have taken place since our last meeting in that room.

We also visited the new Engineering extension with the Julius Berger Engineering Lecture theatre. These old graduates are so keen on giving back that they kept asking “What can we do immediately” for our faculty?

Two members of Mechanical '84 Set at the dean's office.

Two members of Mechanical ’84 Set with the dean.

These old men are well placed people these days in Nigerian Oil Industry and some of their members are retired to their own private businesses and doing quite well. They made it clear that they were only a small number representing their classmates who want a feedback on how they can best serve their alma mater. We looked at a project that may be executed on the short run and another that will be more elaborate for the future.

While the short run project may be limited to something that a few of the members can do privately, the larger project could be anything we can dare to imagine as they are willing to facilitate a connection to larger industry funders that may help us.

Our initial thoughts was for them to help address the acute shortage of the toilet facilities in the faculty. We agreed that once the Surveying and Geoinformatics department moves to its new department office next month, its present location could be the proposed site of a major toilet gift to the faculty fully funded by our generous alumni.

We also noted the fact that the New Engineering extension, Julius Berger Lecture theatre and the newly awarded Third engineering lecture theatre could constitute a group of buildings to be named after the legendary Professor Ayodele Awojobi. As these buildings themselves are already designed and are soon to be fully completed, those of us inside were charged to propose the additional facilities that the funders may need to provide to greatly increase the functionality of these buildings as we rebrand the entire system as the Ayodele Awojobi Engineering Learning Centre.

We finally agreed to put all of this on the web as I am presently doing so as to facilitate more discussion on it and involve more members of the alumni and faculty members. It is my hope that this medium will go a long way to facilitate such a discussion.

Faculty members, please share your thoughts with Alumni members by commenting on this post below. Give them ideas as to how they can use their enormous clout and reach to help improve the environment and facilities here. Beyond “hardware” as we have already described, alumni is also interested in making contacts with the present crop of students. We have suggested their participation in the distinguished lecture series presently being facilitated by the ’72 set. A synergy of several alumni sets may greatly invigorate this interaction and help us to move it to the next level.

Ball in your court now: Shoot!