Ball on 3 Balls- Test (web-App)

Evaluation of strength, pre-factor and effective regions
(press ENTER to evaluate)

(c) Institut für Struktur- und Funktionskeramik - Montanuniversität Leoben, 31.05.2011
Terms of Use:
This tool is provided by ISFK to promote the use of the B3B-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 or effective regions) for your work, please cite:
this page ( and
A. Börger, P. Supancic, R. Danzer: The Ball on three Balls Test for Strength Testing of Brittle Discs - Stress Distribution in the Disc. Journal of the European Ceramic Society, 22 (2002) 1425-1436.