Numerical Simulation Series: Fracture Mechanics Parameters
Abstract: In this edition of ESRD’s Numerical Simulation Series, the computation of fracture mechanics parameters via numerical simulation is examined in detail. Highlights include:
- Computation of 2D and 3D stress intensity factors (SIFs) by the contour integral method (CIM)
- Computation of the 3D energy release rate (ERR) components using the separated J-integral
- Review of Crack Closure Methods and aspects of their implementation for the computation of the 3D ERR components
- Examples of computing fracture mechanics parameters by numerical simulation (via StressCheck Professional), with evidence of solution verification
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“A screening of existent commercial and non-commercial tools was carried out in respect to their fracture mechanics capabilities, their design abilities, implementation as well as their complexity. Although, there are many software possibilities, only those within the reach of the author were evaluated. This resulted in the selection of the commercial tool StressCheck®. The assessment of crack propagation on compact tension and two stringer specimens governed by the Paris and Forman regimes was satisfactory compared with experimental results using the material data from simple standard specimens.”
Lloren Llopart Prieto (EADS)Doctoral Thesis, "Modelling and analysis of crack turning on aeronautical structures"