@inproceedings{f13b3329b4444d49a23a13b5a57da4e5,
title = "Towards a micro-mechanics based understanding of ultrasonic higher harmonic generation",
abstract = "The need for micro-mechanics based understanding leading to meso-scale models for understanding relation between microstructure and ultrasonic higher harmonic generation is emphasized. Three important aspects of material behavior, namely tension-compre{\ss}ion asymmetry, shear-normal coupling and deformation induced anisotropy that are relevant to ultrasonic higher harmonic generation are identified. Of these, the role of tensioncompre{\ss}ion asymmetry in micro-scale material behavior on ultrasonic higher harmonic generation is investigated in detail. It is found that the tension-compre{\ss}ion asymmetry is directly related to ultrasonic even harmonic generation and an energy based measure is defined to quantify the asymmetry. Using this energy based measure, a homogenization based approach is employed to quantify the acoustic nonlinearity in material with micro-voids and the findings are discu{\ss}ed.",
author = "Chillara, {Vamshi Krishna} and Li{\ss}enden, {Cliff J.}",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Health Monitoring of Structural and Biological Systems 2015 ; Conference date: 09-03-2015 Through 12-03-2015",
year = "2015",
doi = "10.1117/12.2179894",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Tribikram Kundu",
booktitle = "Health Monitoring of Structural and Biological Systems 2015",
address = "United States",
}