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…propagation toughness values, particularly in
Teflon
65
(35)
mm
Teflon
mm the
the high Mode II regime. In the high Mode50II(20)
regime,
delamination growth is often unstable, precluding propagation
203.2
toughness values
from being determined. The203.2
use of initiation
FIG. 5 Mixed-Mode Bending Fixture
4
TBD
TBD
TBD
TBD
203.2
203.2
Diab PVC foam…
https://www.wichita.edu/industry_and_defense/NIAR/Documents/PMC-slides-compressed.pdf