Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 86, Number 3, May10 2023 , pages 311-324
DOI: https://doi.org/10.12989/sem.2023.86.3.311
 

 open access

Strain-smoothed polygonal finite elements
Hoontae Jung, Chaemin Lee and Phill-Seung Lee

 
Abstract
    Herein, we present effective polygonal finite elements to which the strain-smoothed element (SSE) method is applied. Recently, the SSE method has been developed for conventional triangular and quadrilateral finite elements; furthermore, it has been shown to improve the performance of finite elements. Polygonal elements enable various applications through flexible mesh handling; however, further development is still required to use them more effectively in engineering practice. In this study, piecewise linear shape functions are adopted, the SSE method is applied through the triangulation of polygonal elements, and a smoothed strain field is constructed within the element. The strain-smoothed polygonal elements pass basic tests and show improved convergence behaviors in various numerical problems.
 
Key Words
    finite element analysis; polygonal elements; solid elements; strain-smoothed element method
 
Address
Hoontae Jung, Phill-Seung Lee: Department of Mechanical Engineering, Korean Advanced Institute for Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
Chaemin Lee: Department of Mechanical Engineering, Korean Advanced Institute for Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Department of Safety Engineering, Chungbuk National University, Chungbuk 28644, Republic of Korea
 

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