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Stability
Failure under Tensile Stress
·Two different techniques are often used to check tensile
stress:
·Bending
·In-line electrical resistance check (as a function of
bending curvature).
·Off-line physical damage statistics.
W0
R
dL
h
s
L
L
R =
22
dL
h
2
s

-
2
12
LL