Wave propagation and wavelet package analysis for debonding detection of CFSTs

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Journal:Smart Structures and Systems

Key Words:piezoceramics; concrete-filled steel tube; debonding defect; identification; wave propagation method

Abstract:In order to investigate the interface debonding defects detection mechanism between steel tube and concrete core of concrete-filled steel tubes (CFSTs), multi-physical fields coupling finite element models constituted of a surface mounted Piezoceramic Lead Zirconate Titanate (PZT) actuator, an embedded PZT sensor and a circular cross section of CFST column are established. The stress wave initiation and propagation induced by the PZT actuator under sinusoidal and sweep frequency excitations are simulated with a two dimensional (2D) plain strain analysis and the difference of stress wave ...

Indexed by:Journal paper

Document Type:J

Volume:19

Issue:2(2017)

Page Number:181-194

ISSN No.:1738-1584 (Print), 1738-1991 (Online)

Translation or Not:no

CN No.:"null"

Date of Publication:2016-10-27

First Author:Bin Xu

Co-author:Hongbing Chen,Song Xia