STRUCTURAL-ANALYSIS OF A FIRST WALL COMPONENT - RESULTS OF BENCHMARK CALCULATIONS

Fusion machines of the next generation will be operated in a cyclic mo de. Under normal operation conditions the loading of the first wall is characterised by high heat fluxes. The need to. compare component lif etime analyses with experimental results from high heat flux tests has been identified and a co-ordinated research program an lifetime behav iour of the first wall of fusion machines has been initiated by the In ternational Atomic Energy Agency. On the basis of common input data, t hermal and mechanical analyses of the components tested have been inve stigated by several participants from Japan, Russia, the Commission of the European Community, the NET team and Germany. The results of the benchmark calculations are presented. structure mechanical tools and l ifetime predictions based on several codes and rules are compared. Lif etime assessment was performed independently of the test results.