Forward study of the structural materials for the supporting system of the clic two-beam module
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The supporting system for the CLIC Two-Beam Module plays a fundamental role for the support and alignment of the RF-components. Thus, the structural materials of the girder and V-shaped supports, along with their corresponding joining methods, need to follow a dedicated study. So far, one baseline and one so-called alternative material have been studied and the very first supporting system prototypes have been produced out of both materials, and undergo validation testing. The stiffness properties in combination with issues faced regarding the precise assembly of the V-shaped supports and the girders require an additional study. The aim of this thesis is to investigate and study potential candidate materials which present similar mechanical properties compared to the materials used for the prototype fabrications so far. The thesis is divided by the theoretical part, followed by the experimental part. In the theoretical part, the mechanical properties of selected materials are studied and compared. The factors limiting the material selection for the supporting system and their corresponding joining methods for the different materials are studied. In addition, the thesis focuses on determining an innovative testing methodology for the studied materials. Furthermore, the relevant optical inspection is foreseen to validate and to provide additional information regarding the surface quality and shape of the fractured area on the candidate materials which will be tested. The goal of the testing part is to obtain and process the experimental data through a series of mechanical and possibly radiation tests on material specimens, in order to validate and confirm or reject the potential use of the tested materials for CLIC fabrications, such as the supporting system of the Module or other. Moreover, the scientific approach of the thesis can result to a useful extension on the material mapping that takes place for the CLIC structural materials.