Original Article
  • Effective Equivalent Finite Element Model for Impact Limiter of Nuclear Spent Fuel Shipping Cask made of Sandwich Composites Panels
  • Seung-Gu Kang*, Jae-Moon Im*, Kwang-Bok Shin**†, Woo-Suk Choi***
  • * Graduate School of Mechanical Engineering, Hanbat National University **† Department of Mechanical Engineering, Hanbat National University, Corresponding author (E-mail: shin955@hanbat.ac.kr) *** Division of Fuel Cycle System, Korea Atomic Energy Research Institute
  • 사용후 핵연료 수송용기 샌드위치 복합재 충격완충체의 유효등가 유한요소 모델 제시
  • 강승구* , 임재문* , 신광복**† , 최우석***
Abstract
ABSTRACT: The purpose of this paper is to suggest the effective equivalent finite element model for the impact limiter of a nuclear spent fuel shipping cask made of sandwich composite panels. The sandwich composite panels were composed of a metallic facesheet and a core material made of urethane foam, balsa wood and red wood, respectively. The effective equivalent finite element model for the impact limiter was proposed by comparing the results of lowvelocity impact test of sandwich panels. An explicit finite element analysis based on LS-DYNA 3D was done in this study. The results showed that the solid elements were recommended to model the facesheet and core of sandwich panels for impact limiter compared to combination modeling method, in which the layered shell element for facesheet and solid element for core material are used. In particular, the solid element for balsa and red wood core materials should be modeled by the element elimination approach.

Keywords: Balsa wood, Impact limiter, Low-velocity impact, Nuclear spent fuel shipping cask, Red wood

Keywords: 발사목, 충격완충체, 저속충격, 사용후 핵연료 수송용 기, 레드우드

This Article

  • 2015; 28(2): 58-64

    Published on Apr 30, 2015