T.O. 33B-1-1
5-66
Table 5-5. Ultrasonic Inspection Methods for Bonded Structures.
Scan Line
Number
(Fig. 5-82)
Applicable Methods
1
Near-Side Skin-to-Core
a.
Pitch/Catch
b.
Mechanical Impedance Analysis
c.
Resonance
d.
Eddy-sonic
e.
Through-transmission
f.
Pulse-echo
g.
Ringing
Core Damage
a.
Mechanical Impedance Analysis
b.
Through-transmission
c.
Pulse-echo
Far-Side Skin-to-Core
a.
Mechanical Impedance Analysis
b.
Through-transmission
2
Near-Side Skin-to-Core
a.
Resonance
c.
Mechanical Impedance Analysis
b.
Through-transmission
c.
Ringing
Core Damage
a.
Mechanical Impedance Analysis
b.
Through-transmission
Far-Side Skin-to-Core
a.
Mechanical Impedance Analysis
b.
Through-transmission
3
a.
Resonance
b.
Mechanical Impedance Analysis
c.
Ringing
4
a.
Resonance
b.
Ringing
c.
Through-transmission
d.
Damping
5
a.
Resonance
b.
Ringing
6
a.
Through-transmission (with fluid delay lines)
7
a.
Resonance
b.
Mechanical Impedance Analysis
c.
Through-transmission
d.
Ringing
5.4.4
Inspection Methods for Bonded Structures.
Table 5-6 lists ultrasonic bond inspection methods along with advantages and limitations of each method. Additional
information on each method is provided in the following paragraphs.
