Updated thermal-mechanical analysis of DFLL-TBM for ITER

The Dual Functional Lithium Lead - Test Blanket Module (DFLL-TBM) was developed by China as one of candidate concepts for ITER. This paper is focused on evaluation of thermal-mechanical performance under integrated load, such as thermal, pressure, and electromagnetic load. The latest 3D finite element model slice for DFLL-TBM was developed. The steady state thermal-mechanical analyses were performed under the normal plasma operational. The primary stress and secondary stress were evaluated according to Structural Design Criteria for ITER In-vessel Components (SDC-IC). It was concluded that the primary plus secondary stress were satisfied with structural material permission under normal operation conditions. The possible recommendations for optimization and analysis of DFLL-TBM are also discussed and proposed.