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17

Don't read this

Don’t

READ

this

Not OK? Still reading? Well, some people just cannot be

helped. Here, at your own risk, are a few words about the world

outside CASA. You could say it is about the neighbours.

As you already know, CASA is an SFI; one of several funding

schemes administered by the Research Council of Norway. Two

of the others are Innovation building projects for industry (IPN)

and Competence building projects for industry (KPN). Both of

these have a more limited scope than an SFI. The similarity lies

in the desire to help industry through research.

MOUNTAIN HIGH…

Did you know that it takes 12 helicopter trips to get a single

power pylon to its destination? Since Norway is full of

mountains, this means a lot of expensive transport. In comes

IPN AluMast. The ambition is to make pylons of aluminium

instead of steel. This could potentially reduce the need from

12 to 5 helicopter trips per pylon.

Researcher Marius Andersen works with the behaviour and

modelling of aluminium columns in AluMast. After defending

his PhD at SFI SIMLab he has turned his attention to the

structural response of thin-walled aluminium tubes subjected

to axial loading. The aim: to avoid buckling and collapse. In

his work, Andersen will take advantage of the numerical

simulation methods and experimental techniques available at

SIMLab.

Understandably, CASA partner and aluminium producer Hydro

is a partner in AluMast. So are SINTEF and many more.

…FJORD WIDE…

Did you know that the Norwegian Parliament wants to build

a ferry-free highway – the new E39 – from Kristiansand to

Trondheim? This involves crossing eight fjords, including the

Sogne Fjord where it is 1.3 kilometres deep and 3.7 kilometres

wide. A submerged floating tunnel is one of the solutions being

considered. No such tunnel exists today.

When researcher Martin Kristoffersen defended his PhD at SFI

SIMLab, the topic was oil pipelines subjected to impact. Since

then he has changed material and dimensions: at present,

he is investigating what would happen in an explosion inside

a tunnel made of concrete. Thanks to SIMLab’s shock tube,

Kristoffersen is able to perform small-scale testing. The

results are paired with numerical modelling to understand the

behaviour of the concrete.

CASA partner the Norwegian Public Roads Administration has

signed an agreement with NTNU including 20 PhDs dealing with

the new E39 alone.

…AND THE DEEP BLUE SEA

Yes, you do know that polymers change behaviour at freezing

temperatures. What you probably don’t know very much

about, is the details. This is PhD candidate Joakim Johnsen’s

domain. He works on the project Arctic Materials II, which is

a consortium led by SINTEF. A number of other CASA partners

participate as well: DNV GL, Statoil, Hydro and Sapa.

The main goal of Johnsen’s PhD project is to develop a

method to obtain local deformation data from experiments of

polymers. He looks at the behaviour of two types of polymers

at temperatures ranging from +25 to -30 degrees Celsius. He

is also working on recording the self-heating in the material

using an infrared camera.

Johnsen seeks to develop a material model that captures the

change in material behaviour due to variations in temperature

and strain. This is obviously crucial knowledge for the oil and

gas industry and other operators in the Arctic.

CONDUCTIVITY VS. STRENGTH

SINTEF is also involved in several KPNs with links to CASA. Two

of them are AMPERE and FICAL.

In AMPERE, the hunt is for the optimal combination of

mechanical properties and electrical conductivity in aluminium

alloys at elevated temperatures. Such properties are sought

after in the engine room of cars, in heat exchangers and

many other places. Potentially, aluminium could replace

costly copper in subsea electric cables. CASA Professor Knut

Marthinsen is project leader and other partners include Hydro

and Sapa. SINTEF researchers Stéphane Dumoulin and Térence

Coudert are also central in the project.

FICAL looks into aluminium grain borders with special attention

on corrosion. There is a substantial potential for increased

use of aluminium in the automotive industry and elsewhere.

Improved mechanical and corrosion properties would further

increase the potential.

FICAL attacks these challenges at the nanoscale and seeks

to develop modelling tools for optimizing alloy design and

performance. CASA Professor Randi Holmestad and SINTEF

researchers Calin Marioara, Jesper Friis and Inga Ringdalen are

all involved in the project.

TOPPFORSK

Then there is prestigious Toppforsk project FractAl which

was the subject of last year’s “Don’t Read This” article. CASA

Professors Odd Sture Hopperstad and Tore Børvik have teamed

up with Hydro’s Ole Runar Myhr and Professors Ahmed Benallal

from the French university LMT-Cachan and Jonas Faleskog

from the Royal Institute of Technology in Sweden.

The aim is to enable the design of both the material and

structure of aluminium alloys in an optimal combination

without having to use time-consuming and expensive

mechanical tests.

And that’s only a selection of the neighbours. Perhaps in the

near future you will learn why results of CASA research are

relevant to tap geothermal energy from the Earth’s crust.

Did you read the «Don’t Read This» article in last year’s annual report?

Then you know that it wasn’t about CASA. Nor is this year’s version. So stay away, OK?