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Numerical methods in fracture mechanic

: Schmitt, W.

Herrmann, K.P.; Larsson, L.H. ; European Coal and Steel Community -ECSC-, Brussels:
Fracture of non-metallic materials
Brussels; Dordrecht: Reidel, 1985
Advanced Seminar on Fracture Mechanics <5, 1985, Ispra>
Conference Paper
Fraunhofer IWM ()
compact specimen; continuum mechanic; crack arrest; crack tip element; energy release rate; finite element analysis; fracture mechanic; J-integral; numerical methods; proof test; stress intensity factor

After a short introduction sketching the continuum mechanics description, the basic equations of Fracture Mechanics will be evaluated with particular emphasis on the numerical treatment. Among the numerical methods the Finite Element Method (FEM) will be discussed in more detail, including special crack tip elements, energy release rates and path-independent integrals. The problem of short cracks will be touched as well as the damage function approach. A series of actual cases will be presented to demonstrate the applicability and validity of the methods introduced. (IWM)