Strain rate history affects the behaviour of materials

When subjected to strain, the behaviour of almost all materials is dependent on temperature and the strain rate. However, there are distinct differences depending on the type of material.

“Some basic principles are more or less universal, but in practice the only way to generate reliable data about the behaviour of a specific material is through experiments,” says Isakov.

For example, the automotive industry is under constant pressure to develop safer and more energy-efficient vehicles. Comprehensive knowledge of the behaviour of materials is required in both the design and manufacturing stages.

"In addition to variables such as temperature, we need to consider the strain rate history of materials to reliably predict their behaviour,” concludes Isakov.

Public defence of a doctoral dissertation on Friday, 5 October

The doctoral dissertation of MSc (Tech) Matti Isakov in the field of materials science "Strain Rate History Effects in a Metastable Austenitic Stainless Steel” will be publicly examined at the Faculty of Automation, Mechanical and Materials Engineering of Tampere University of Technology (TUT) in room Pieni Sali in the Festia building (address: Korkeakoulunkatu 8, Tampere, Finland) on Friday, 5 October 2012 at 12:00.

The opponents will be Professor David Porter (University of Oulu) and Professor Stefan Hiermaier (Fraunhofer Institut for High Speed Dynamics, Ernst-Mach-Institut). Professor Veli-Tapani Kuokkala from the Department of Materials Science at TUT will act as Chairman.

Matti Isakov (29) comes from Hämeenlinna, Finland, and works as a researcher at the Department of Materials Science of TUT.

Further information:
Matti Isakov, tel. +358 40 849 0135, ">matti.isakov@tut.fi

The dissertation is available online at: http://URN.fi/URN:ISBN:978-952-15-2919-1