Paper Title:
Finite Element Simulation of Damage Detection of Stiffened Plate under Temperature Variation
  Abstract

Lamb waves are ultrasonic elastic waves that travel inside and along thin plates and is frequently used as diagnostic tools to detect damage in plate-like structures. In this paper, a transient dynamic finite element simulation of Lamb wave with piezoelectric transducers for damage detection in a stiffened plate under different temperature condition is carried out on the commercial finite element code ANSYS platform. Simulations are conducted over a temperature range. The changes in temperature-dependent material properties are used to measure the differences in the response signal’s waveform. The baseline selection method and baseline signal stretch method are used to compensate the temperature influence on Lamb wave propagation. The results of the numerical simulation demonstrate the effectiveness of the temperature compensation approach and the simulated damage on the stiffened plate can be defected effectively under elevated temperatures environment.

  Info
Periodical
Advanced Materials Research (Volumes 230-232)
Edited by
Ran Chen and Wenli Yao
Pages
75-79
DOI
10.4028/www.scientific.net/AMR.230-232.75
Citation
W. Z. Qu, L. Xiao, "Finite Element Simulation of Damage Detection of Stiffened Plate under Temperature Variation", Advanced Materials Research, Vols. 230-232, pp. 75-79, 2011
Online since
May 2011
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Price
$32.00
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