Fe. Heredia et al., MECHANICAL PERFORMANCE OF CERAMIC-MATRIX COMPOSITE I-BEAMS, Composites. Part A, Applied science and manufacturing, 27(12), 1996, pp. 1157-1167
Experimental studies have been performed on ceramic matrix composite (
CMC) I-sections, which typify joint designs for CMC components. Axial
loads and moments have been applied to activate delamination mechanism
s. The maximum load bearing capacity has large variability, governed b
y the severity of manufacturing flaws located in the transition region
of the I-section. This variability leads to an unsatisfactory design
situation. Delaminations that form from these flaws arrest and behave
in a stable manner, subject to a remanent load bearing capacity. This
remanent capacity has minimal variability. Hence, design based on the
remanent load would be robust. An expression for this design criterion
is presented. Copyright (C) 1996 Elsevier Science Limited