This handbook brings together a great deal of new data on the static and dynamic elastic
properties of granular and other composite material. The authors are at the very center of …

The appearance of nonlinear effects in elastic wave propagation is one of the most reliable
and sensitive indicators of the onset of material damage. However, these effects are usually …

A critical review, examination, and clarification of the various issues and problems
concerning the definition and dependence of the effective‐stress coefficients of porous‐rock …

This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the
energy of the diffuse field produced through the focusing of an ultrasonic array by delayed …

An experimental study was conducted on different concrete cylinders damaged in
compression. The evolution of damage was followed by means of linear and nonlinear …

The signature of nonlinearity in the elastic response of a specimen to an impingent
ultrasonic wave is usually determined through Fourier analysis, which provides low …

Nonlinear imaging techniques have recently emerged which have the potential to detect
material degradation and challenging defects, such as closed cracks. This paper describes …

Analyzing the nonlinear part of a signal generated by the response of a sample to an elastic
excitation is a powerful tool to gain information on the material microstructure, including the …

Second harmonic generation is one of the most sensitive and reliable nonlinear elastic
signatures for micro-damage assessment. However, its detection requires powerful …

Purpose: As an ultrasound wave propagates nonlinearly, energy is transferred to higher
frequencies where it is more strongly attenuated. Compared to soft tissue, the skull has …