Studying the interaction of crack-like flaws using the MATLAB toolbox int_defects

H. E. Coules, M. A. Probert

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
411 Downloads (Pure)


int_defects is a free and open-source toolbox for MATLAB which uses the Abaqus finite element analysis suite to automate the analysis of interacting crack-like flaws in structures. It is designed to aid the development of flaw interaction criteria for structural integrity assessment procedures and to simplify sensitivity analysis of flaw proximity. It can also perform automatic 3D elastic, elastic-plastic or limit load analysis of elliptical embedded flaws and semielliptical surface flaws in plates and thick-walled pipes under a wide range of loading conditions. This technical note outlines the capabilities of int_defects and gives some examples of its use.
Original languageEnglish
Article number106733
Number of pages18
JournalEngineering Fracture Mechanics
Early online date25 Oct 2019
Publication statusPublished - 15 Mar 2020


  • Finite element analysis
  • Fracture mechanics
  • Limit load
  • Flaw interaction


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