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March 26, 2026The Proceedings of Mechanical Engineering Congress Japan0 citationsOpen Access

Time-history volume estimating method for a deforming piping element under loading test

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KTKiyotaka TAKITOKTKeita TAKEDAOFOsamu Furuya

Key Points

  • This research aims to develop a method for accurately estimating the volume changes in piping elements due to deformation during loading tests.
  • Analyzed deformation through internal pressure trends during loading tests.
  • Utilized measurements of reaction forces for volume estimation.
  • Provided a case study to illustrate the application of the technique.
  • Identified significant relationships between internal pressure and volume reduction.
  • Demonstrated effective estimation of volume changes from pressure trends.
  • Provided evidence that the new technique simplifies capturing time-history deformations.

Abstract

Previously, the cross-sectional deformation of piping elements was recorded by taking displacement measurements at multiple points or by sketching after cutting. Obtaining a time-history record of deformation, moment by moment during loading tests, has been challenging. In this study, we focused on trends in internal pressure, influenced by volume reduction due to cross-sectional deformation. This paper provides an overview of a simple estimating technique for piping elements utilizing pressure or reaction force trends and presents a case study.

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Cite This Study

TAKITO et al. (2025) studied this question.

synapsesocial.com/papers/69c4ccc9fdc3bde4489185a7https://doi.org/10.1299/jsmemecj.2025.j101-06
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