Notched Roller Test (web-App)

Evaluation of strength and pre-factor
(Veff and Seff are not available in the web, please contact:
(press ENTER to evaluate)

(c) Institut für Struktur- und Funktionskeramik - Montanuniversitaet Leoben, 07.01.2014

Terms of Use:
This tool is provided by ISFK to promote the use of the NR-test. The practical use of the test is simple, but its evaluation requires FEM-calculations which we make available here. The use of the tool is free of charge. If you use data generated with the applet (strength, pre-factor) for your work, please cite:
this page ( and
Strobl S., Supancic P., Schöppl O., Danzer R.: "A new Strength Test for Ceramic Cylinders – The Notched Roller Test", Journal of the European Ceramic Society 34 (2014), 2575-2584.