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Numerical Fracture Analysis of Chevron‐Notched Specimens: I, Shear Correction Factor, k
Author(s) -
SAKAI MOTOTSUGU,
YAMASAKI KOUZOU
Publication year - 1983
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1983.tb10052.x
Subject(s) - chevron (anatomy) , materials science , finite element method , fracture (geology) , stress intensity factor , bar (unit) , shear (geology) , composite material , structural engineering , fracture mechanics , geology , engineering , paleontology , oceanography
Numerical analyses are developed in both short bar and 4‐point bend bar cases to estimate the interlaminar shear correction factor k of chevron‐notched specimens with various kinds of geometry. The values of k were calculated by comparing the specimen compliances of Bluhm's slice models with those of finite element models. We elucidated the effect of surface boundary on k and modified the Bluhm's assumption. The modification has a slight influence on compliance, but is substantial when considering the stress intensity factor and elastic stored energy at fracture load. The present results give a basis for further consideration of the fracture behavior of chevron‐notched specimens. Part II is a discussion of the stability condition for crack growth of chevron‐notched specimens using the present results.