New contributions to R-curves and bridging stresses - Applications of weight functions

Most ceramics show an increase of the crack growth resistance during crack propagation (R-curve behaviour). Reasons for such behaviour are bridging effects between opposite crack surfaces, phase transformations around the tip of a crack, and development of micro-cracking zones. This booklet predomin...

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Bibliographische Detailangaben
1. Verfasser: Fett, Theo
Format: Online
Sprache:Englisch
Veröffentlicht: KIT Scientific Publishing 2021
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Online-Zugang:35713
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Beschreibung
Zusammenfassung:Most ceramics show an increase of the crack growth resistance during crack propagation (R-curve behaviour). Reasons for such behaviour are bridging effects between opposite crack surfaces, phase transformations around the tip of a crack, and development of micro-cracking zones. This booklet predominantly deals with the bridging behaviour and the discussion of the observed effects in terms of the fracture mechanics weight function procedure.