Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Polygonal Scaled Boundary Finite Element Method for Solving Heat Conduction Problems

Version 1 : Received: 24 June 2021 / Approved: 25 June 2021 / Online: 25 June 2021 (12:37:43 CEST)

How to cite: Yang, Y.; Zhang, Z.; Feng, Y.; Yu, Y.; Wang, K.; Liang, L. A Polygonal Scaled Boundary Finite Element Method for Solving Heat Conduction Problems. Preprints 2021, 2021060623 (doi: 10.20944/preprints202106.0623.v1). Yang, Y.; Zhang, Z.; Feng, Y.; Yu, Y.; Wang, K.; Liang, L. A Polygonal Scaled Boundary Finite Element Method for Solving Heat Conduction Problems. Preprints 2021, 2021060623 (doi: 10.20944/preprints202106.0623.v1).

Abstract

This paper presents a steady-state and transient heat conduction analysis framework using the polygonal scaled boundary finite element method (PSBFEM) with polygon/quadtree meshes. The PSBFEM is implemented with commercial finite element code Abaqus by the User Element Subroutine (UEL) feature. The detailed implementation of the framework, defining the UEL element, and solving the stiffness/mass matrix by the eigenvalue decomposition are presented. Several benchmark problems from heat conduction are solved to validate the proposed implementation. Results show that the PSBFEM is reliable and accurate for solving heat conduction problems. Not only can the proposed implementation help engineering practitioners analyze the heat conduction problem using polygonal mesh in Abaqus, but it also provides a reference for developing the UEL to solve other problems using the scaled boundary finite element method.

Subject Areas

Scaled boundary finite element method; Heat conduction; Abaqus UEL; Polygon; Quadtree; Semi-analytic

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