Experimental validation of ASME strain-based seismic assessment methods using piping elbow test data

Jong Min Lee, Jae Yoon Kim, Hyun Seok Song, Yun Jae Kim, Jin Weon Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

To quantify the conservatism of existing ASME strain-based evaluation methods for seismic loading, this paper presents very low cycle fatigue test data of elbows under various cyclic loading conditions and comparison of evaluation results with experimental failure cycles. For strain-based evaluation methods, the method presented in ASME BPVC CC N-900 and Sec. VIII are used. Predicted failure cycles are compared with experimental failure cycle to quantify the conservatism of evaluation methods. All methods give very conservative failure cycles. The CC N-900 method is the most conservative and prediction results are only ∼0.5% of experimental data. For Sec. VIII method, the use of the option using code tensile properties gives ∼3% of experimental data, and the use of the material-specific reduction of area can reduce conservatism but still gives ∼15% of experimental data.

Original languageEnglish
Pages (from-to)1616-1629
Number of pages14
JournalNuclear Engineering and Technology
Volume55
Issue number5
DOIs
Publication statusPublished - 2023 May

Bibliographical note

Publisher Copyright:
© 2023 Korean Nuclear Society

Keywords

  • ASME strain-based assessment method
  • Experimental validation
  • Finite element analysis
  • Pipe elbow test under cyclic loading

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

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