Stress Analysis and Structural Integrity Evaluation of Piping System in TMSR
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摘要: 钍基熔盐堆(TMSR)管道设计温度可达700℃,设计标准采用美国机械工程师协会ASME-NH分卷。高温管道评定时除需要进行应力评定外,还需进行应变变形限值和蠕变疲劳限值等评定。利用通用有限元分析软件(ANSYS)对整体回路系统进行计算,并通过优化计算,使得管道应力达到ASME规范中限值要求。Abstract: The design temperature of pipeline can up to 700℃ in the thorium-based molten salt reactor（TMSR）.Thus, the high temperature structural design code ASME-NH is adopted for the structural integrity evaluation. The load-controlled stress, the total accumulated inelastic strain as well as the creep-fatigue damage need to be checked in evaluating the structural integrity for elevated temperature. The software ANSYS is used to do the finite element analysis of the overall loop system. The calculation results demonstrate that the demands of the pipe stress are satisfied by repeated optimizing.
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Key words:
- Molten salt reactor /
- Piping system /
- ASME-NH /
- Stress evaluation /
- Strain-deformation limit /
- Creep fatigue limit
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