One of the limiting factors in gas turbine design is the allowable metal temperatures and loads in critical components. Specially designed superalloys are used when the conditions are most severe. One of these superalloys is Inconel 718. To be able to design components for higher temperature and higher loads, an accurate understanding and computational model of the material is needed. In this thesis the deformation mechanisms of Inconel 718 have been investigated and a theoretical basis for modelling in a large deformation context has been established. Finally a viscoplastic nonlinear kinematic hardening material model with an Armstrong-Frederick backstress evolution law has been implemented as a first step in describing the constitutive behaviour of the material Inconel 718.

One of the limiting factors in gas turbine design is the allowable metal temperatures and loads in critical components. Specially designed superalloys are used when the conditions are most severe. One of these superalloys is Inconel 718. To be able to design components for higher temperature and higher loads, an accurate understanding and computational model of the material is needed. In this thesis the deformation mechanisms of Inconel 718 have been investigated and a theoretical basis for modelling in a large deformation context has been established. Finally a viscoplastic nonlinear kinematic hardening material model with an Armstrong-Frederick backstress evolution law has been implemented as a first step in describing the constitutive behaviour of the material Inconel 718.

<p>One of the limiting factors in gas turbine design is the allowable metal temperatures and loads in critical components. Specially designed superalloys are used when the conditions are most severe. One of these superalloys is Inconel 718. To be able to design components for higher temperature and higher loads, an accurate understanding and computational model of the material is needed. In this thesis the deformation mechanisms of Inconel 718 have been investigated and a theoretical basis for modelling in a large deformation context has been established. Finally a viscoplastic nonlinear kinematic hardening material model with an Armstrong-Frederick backstress evolution law has been implemented as a first step in describing the constitutive behaviour of the material Inconel 718.</p>

Frederic Woodman Root was a vocal pedagogue and writer of the late nineteenth century. He wrote over eighteen books on vocal pedagogy, and numerous articles on singing. Since his death, most of his works have fallen into obscurity. The purpose of this document was to codify the vocal pedagogy of Frederic Woodman Root, discussing his particularly thorough methodology, and to bring his methods back into the public eye. His method is broken down into the various components of basic musicianship, the General Principle, the Three Vowel Forms, registers, breathing, and agility. Examples from Root's exercises are included and discussed.

- The thesis is focused on Swedish foreign policy during the period 1660 - 1675, the early years of Charles XI's reign. Although Sweden is considered as an empire practically all over the 17th century, from the economic point of view it was a weak country. Sweden was totally depending on financial help from its allies, especially during periods of peace, as it was the case between 1660 and 1675. This fact belongs to the main aspects influencing the Swedish foreign policy at this time. Main part of the thesis is dedicated to relations between Sweden and other European states. The most significant were the relations with France and Denmark, since France was the ally which provided Sweden the needed finance. The role of Denmark was also essential because of its geographical position as neighbouring country to Sweden. The thesis indeed discusses relations to some other states that played an important role as well - England, the Netherlands, Brandenburg, other German states, Poland and Russia. The aim of the thesis is not just to analyse the Swedish foreign policy, but even to answer questions if there was any alternative or if the way this policy was conducted was the only possible one and also, if such policy can be considered as success or failure. These questions are answered at the final part of...

- The thesis is focused on relations between Sweden and Brandenburg in the years 1660 - 1701. Although Sweden is considered as an empire practically all over the 17th century, a new, important power rises in its neighbourhood, namely Brandenburg-Prussia, and this rise is finished by the Royal coronation of Fredrick I in 1701. Main part of the thesis is dedicated to the political and military relations, less to the cultural relations. Even other countries, following and protecting their interests in the Baltic region, are taken into account, especially Denmark and France. The aim of the thesis is to analyse relations between Sweden and Brandenburg and to try to find an answer on the question, if Sweden's focus on its internal problems and reforms contributed to the rise of Prussia or if there is no direct connection between these two tendencies. Key terms - Swedish Imperial Period, regency, Charles XI, Charles XII, Louis XIV, Elector Fredrick William, Elector Fredrick III, Scanian War, foreign policy, Baltic Sea hegemony