Simple energy dissipation model of riveted lap joint in aircraft structure

Tomohiro Tachi, Shigeru Machida, Takao Okada, Shinsuke Suzuki

Research output: Contribution to journalArticle

Abstract

This investigation was conducted to propose an estimation method for energy dissipation in riveted lap joints. In this study, we made a simple energy dissipation model for riveted lap joint by replacing the joint part with a material that draws a hysteresis loop. This simple model does not require detailed contact analysis. Therefore, the calculation cost can be reduced. Hysteresis loops were obtained from cyclic loading tests. Coefficients were obtained by fitting the hysteresis loop assuming that the shape of the hysteresis loop is symmetric. The coefficients were applied to FEM as material properties. Then, load/displacement curves were obtained from FEM, and energy dissipation was calculated from the hysteresis loop. It was shown that the simple model in this study can reproduce the energy dissipation process with an error of less than approximately 13% in the range of the experiment.

Original languageEnglish
Pages (from-to)341-346
Number of pages6
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Volume60
Issue number6
DOIs
Publication statusPublished - 2017

Keywords

  • Aircraft Structure
  • Energy Dissipation
  • Rivet
  • Structural Damping

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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