Mathematics
Fatigue Damage
100%
Aluminum Alloy
90%
Sensing
75%
Laser
69%
Comparative Study
62%
Impedance
61%
Damage
32%
Classification Algorithm
19%
Fatigue
18%
Attenuation
17%
Damage Identification
14%
Resonance Frequency
10%
Residual Lifetime
9%
Robust Algorithm
9%
Aluminum
9%
Permittivity
9%
Aircraft
8%
Range of data
8%
Stiffness
7%
Conductivity
7%
Spectral Analysis
7%
Time-varying
6%
Estimate
6%
Spectrality
5%
Testing
4%
Cycle
4%
Engineering & Materials Science
Fatigue damage
58%
Aluminum alloys
48%
Ultrasonic measurement
47%
Ultrasonics
47%
Lasers
41%
Acoustic impedance
40%
Fatigue of materials
15%
Tensile testing
12%
Spectrum analysis
11%
Permittivity
11%
Aluminum
8%
Aircraft
7%
Stiffness
7%
Physics & Astronomy
electrical impedance
57%
aluminum alloys
51%
damage
39%
impedance measurement
27%
lasers
24%
lugs
13%
attenuation
12%
shear properties
11%
estimates
9%
aircraft
8%
spectrum analysis
7%
estimating
7%
stiffness
6%
impedance
6%
permittivity
5%
aluminum
5%
life (durability)
5%
cycles
5%
conductivity
5%
Chemical Compounds
Aluminium Alloy
60%
Permittivity
30%
Tension
26%
Shear
25%
Indicator
24%
Resonance
22%
Conductivity
18%