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

• Main Author: Fett, Theo (auth)
• Format: Electronic Book Chapter
• Language: English
• Published: KIT Scientific Publishing 2012
• Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie
• Subjects: Technology: general issues; Bridging stresses; Crack-growth resistance; weight function; silicon nitride; Siliziumnitrid; R-curve; Keramik; R-Kurven; Gewichtsfunktionen
• Online Access: DOAB: download the publication; DOAB: description of the publication

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...