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SIMPLE J c , ESTIMATION FORMULAE FOR THREE‐POINT BEND SPECIMENS
Author(s) -
Sumpter J. D. G.
Publication year - 1992
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1992.tb00033.x
Subject(s) - displacement (psychology) , simple (philosophy) , point (geometry) , fracture (geology) , materials science , structural engineering , mathematics , geometry , composite material , engineering , psychology , philosophy , epistemology , psychotherapist
This report reviews some simple methods for determining J c at the onset of cleavage fracture in a three‐point bend crack tip opening displacement test. It is concluded that acceptable estimates of J, can be made from specimen mouth opening displacement without precise measurement of crack length.