des DFG-Sonderforschungsbereichs 393

Numerische Simulation auf massiv parallelen Rechnern

Zeit: Freitag, 31.1.2003, 11:00 Uhr
Ort: Reichenhainer Straße 70, B 202
Vortragender: D. Leguillon (Paris 6)
Thema: A criterion for crack initiation at a v-notch

Energy and strength criteria are necessary conditions for fracture, but neither one nor the other are sufficient. The energy criterion provides a lower bound for admissible crack lengths while the stress criterion provides an upper bound. The consistency between these two bounds leads to a general form for a crack nucleation criterion. There is a fair agreement between this theoretical prediction and experiments on v-notched specimens of PMMA and Alumina.

Das Seminar wird von Prof. Meyer geleitet. Interessenten sind herzlich eingeladen.

Gerd Kunert,