A polygon scaled boundary finite element formulation for transient coupled thermoelastic fracture problems

E. T. Ooi, M. D. Iqbal, C. Birk, S. Natarajan, E. H. Ooi, C. Song

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

The scaled boundary finite element method is developed for transient thermoelastic fracture analysis. To enable this, a set of novel shape functions are derived considering thermoelastic equilibrium. The salient features of the proposed framework are: (a) can be formulated on polygons with an arbitrary number of sides leading to flexible mesh generation and (b) facilitates an accurate and direct evaluation of the stress intensity factors from their definition without resorting to any post-processing techniques using relatively coarse meshes. Several numerical benchmark problems demonstrate the aforementioned features of the technique.

Original languageEnglish
Article number107300
Number of pages32
JournalEngineering Fracture Mechanics
Volume240
DOIs
Publication statusPublished - Dec 2020

Keywords

  • Coupled thermoelasticity
  • Fracture
  • Scaled boundary finite element method
  • Stress intensity factors
  • Thermal stress

Cite this