Numerical approach to elucidate the behavior of seismic lining adopting hyperelastic material model

Sung Kwon Ahn; Hee Up Lee; Jeongjun Park; Jiwon Lee

doi:10.9711/KTAJ.2023.25.6.495

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2023 Vol.25, Issue 6 Preview Page Next Page

Research Paper

Numerical approach to elucidate the behavior of seismic lining adopting hyperelastic material model 수치해석을 이용한 초탄성 재료 기반 면진라이닝의 거동 규명

30 November 2023. pp. 495-507

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Abstract

Considering the continuing discussion about the Korea-Japan undersea tunnel, it is necessary to conduct a scientific investigation into tunnel deformation associated with large ground movements at fault. This paper presents findings obtained from numerical experiments to investigate a seismic lining that adopts rubber-like material. We utilized the user material subroutine to obtain the deformation gradient of the hyperelastic material. Additionally, polar decomposition is used to analyze the results, where the data is displayed on a series of two-dimensional planes using the principal direction, which facilitates a better insight into the deformation. Tunnel engineers could refer to this paper for the procedure to investigate the deformation of hyperelastic material.

Keywords

Deformation gradient

Polar decomposition

User material subroutine

Undersea tunnel

Hyperelastic material

지속해서 논의 중인 한일 해저터널 건설과 관련해 단층대에서 일어날 것으로 예상되는 대규모 지반 변위에 따른 터널의 변형에 대한 연구가 필요하다. 이 연구는 고무 재료 기반 면진라이닝에 관한 수치해석 결과를 제시한다. 변형 구배를 산정하기 위해 사용자 정의 서브루틴을 이용했다. 또한 극 분해를 통해 데이터를 분석하였으며, 주 신축 방향으로 정렬된 여러 평면 좌표계를 이용해 데이터를 도시하여 재료 변형에 대한 심층적인 이해를 얻을 수 있었다. 터널 기술자는 초탄성 재료의 변형 관련 연구에 이 연구를 참고할 수 있다.

키워드

변형 구배

극 분해

사용자 재료 서브루틴

해저 터널

초탄성 재료

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Information

Publisher :Korean Tunneling and Underground Space Association
Publisher(Ko) :한국터널지하공간학회
Journal Title :Journal of Korean Tunnelling and Underground Space Association
Journal Title(Ko) :한국터널지하공간학회 논문집
Volume : 25
No :6
Pages :495-507
Received Date : 2023-10-23
Revised Date : 2023-11-07
Accepted Date : 2023-11-08
DOI :https://doi.org/10.9711/KTAJ.2023.25.6.495

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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