Impact damage detection in composite chiral sandwich panels using nonlinear vibro-acoustic modulations

被引：68

作者：

Klepka, Andrzej ^{[1
]}

Staszewski, Wieslaw J. ^{[1
]}

di Maio, Dario ^{[2
]}

Scarpa, Fabrizio ^{[2
]}

机构：

[1] AGH Univ Sci & Technol, Dept Robot & Mechatron, PL-30059 Krakow, Poland

[2] Univ Bristol, Dept Aerosp Engn, Bristol BS8 1TR, Avon, England

来源：

SMART MATERIALS AND STRUCTURES | 2013年 / 22卷 / 08期

关键词：

CRACK DETECTION; HONEYCOMB; ACOUSTICS; BEHAVIOR;

D O I：

10.1088/0964-1726/22/8/084011

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper reports an application of nonlinear acoustics to impact damage detection in a composite chiral sandwich panel. The panel is built from a chiral honeycomb and two composite skins. High-frequency ultrasonic excitation and low-frequency modal excitation were used to observe nonlinear modulations in ultrasonic waves due to structural damage. Low-profile, surface-bonded piezoceramic transducers were used for ultrasonic excitation. Non-contact laser vibrometry was applied for ultrasonic sensing. The work presented focuses on the analysis of the modulation intensities and damage-related nonlinearities. The paper demonstrates that the method can be used for impact damage detection in composite chiral sandwich panels.

引用

页数：13

共 43 条

[1] Elastic constants of 3-, 4-and 6-connected chiral and anti-chiral honeycombs subject to uniaxial in-plane loading [J].