Calculation of stress intensity factors – an interface crack

Leslie Banks-Sills*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


In this chapter, aspects of the finite element method for obtaining the displacement field of a body containing an interface crack are described. Square-root singular, quarter-point elements in two and three dimensions will be presented. Once the displacement field is found three methods are suggested for computing stress intensity factors; they include the displacement extrapolation (DE) method, the conservative interaction energy integral or M-integral, and the Virtual Crack Closure Technique (VCCT). The stress intensity factors are then employed to obtain the interface energy release rate and two phase angles.

Original languageEnglish
Title of host publicationSpringerBriefs in Applied Sciences and Technology
PublisherSpringer Verlag
Number of pages19
StatePublished - 2018

Publication series

NameSpringerBriefs in Applied Sciences and Technology
ISSN (Print)2191-530X
ISSN (Electronic)2191-5318


  • Displacement extrapolation method
  • Finite element method
  • M-integral
  • Quarter-point element
  • Shape functions
  • Thermal residual stresses
  • Virtual crack closure technique


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