Nondestructive Characterization of Composite MediaA guide to NDE of composite materials by acoustic wave propagation, including advanced ultrasound methods, for detailed identification and measurement of defects, and characterization of microstructure and properties. "The major objective is to present the basic concepts of wave propagation in anisotropic media, and to show how these concepts can be applied to the quantitative, nondestructive evaluation of composite media." |
Contents
Energy Propagation | 13 |
Guided Waves | 41 |
Experimental Consideration | 67 |
Methods for Elastic Modulus | 83 |
Experimental Considerations | 95 |
Ultrasonic Modulus Measurements | 109 |
Composite Microstructure Characterization | 153 |
| 177 | |
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Common terms and phrases
acoustic algorithm Amplitude anisotropic media approach back surface Butterworth Heinemann Ltd C₁₁ calculated Christoffel equation Composite Materials Copyright Plenum Publishing cos² Courtesy American Institute critical angle delay measurements Dispersion curves Elastic Constants elastic moduli energy flux deviation energy flux vector experimental fiber axis fiber reinforcement fiber volume fraction geometry group velocity guided wave Hence Hosten illustrated in Figure immersion Incident Angle interface Kline laminate longitudinal wave material symmetry nonsymmetry orthotropic particle displacement phase velocity plane plate wave Plenum Publishing Corporation porosity problem properties pulse-echo pure mode pv² quasilongitudinal quasitransverse reconstruction reflected refracted Reprinted with permission sample scanning shear modulus shear wave shown in Figure signal simplex algorithm sin² sin³ slowness surface sections Snell's law solution specimen surface wave techniques transmission transverse wave transversely isotropic ultrasonic velocity V₁ V₂ values velocity measurements velocity surface vertex wave normal wave number wave propagation yields Young's modulus