Report on numerical lifetime prediction method for EMW equipment

The numerical simulation of the EMW tools aims at lifetime prediction of the EMW tools’ components. This task is complex by definition since the modelling of the multi-materials must be considered. The EMW tool consists of at least two different materials, on the one hand, the metal material which has high electrical conductivity and strength (copper or aluminium alloy) on the other hand this conductor must be electrically insulated by what is also called as housing. This part is made of fibre reinforced polymer materials that are submitted to locally high mechanical loads. Hence, work done within this task is subdivided into the following four parts as illustrated in Figure 1:

1. Part 1 is a part of a multi-scale material modelling which describes the generation of the micro-scale geometry, homogenisation techniques and non-linear material behaviour.
2. Part 2 presents a mesoscale modelling with the definition of the two different approaches to represent the geometry of textile composites.
3. Part 3 describes the macro-scale modelling including the development of the anisotropic damage model for three-dimensional case and introduction of the damage degradation as a function of the number of cycles.
4. Part 4 is dedicated to fatigue simulation of the conductive materials of the EMW tool.