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Statistical and systematical errors in the Strength Determination of brittle materials
Author(s) -
Bongartz K.,
Schuster H.
Publication year - 1991
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.19910221205
Subject(s) - brittleness , flexural strength , materials science , bending , ceramic , composite material , fracture (geology) , structural engineering , brittle fracture , point (geometry) , mathematics , engineering , geometry
A Computer simulation method was set up to determine the number of ceramic test specimens recommendable for the experimental strength determination on structural components (e.g. on a tube section) under simulated operation conditions, assuming that these measurements can be supported by 4‐Point‐Bending‐(4PB)‐tests on small standard test specimens of the identical material The results show, that a small number of tests performed directly on components, (less than 5) is sufficient to determine the mean strength. To determine the strength for a technologically significant low fracture probability, 4PB‐tests with small standard tet specimens are recommended with a big number of specimens.