Predictive simulation of structural sensing

Matthieu Gresil, Victor Giurgiutiu, Yanfeng Shen

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

This paper discusses the development of a methodology for multi-scale multi-domain predictive simulation of structural sensing. Tools are provided to extend the modeling capacities and improve quality and reliability of 1-D and 2-D guided wave propagation models using commercially available finite element method (FEM) packages. Predictive simulation of ultrasonic nondestructive evaluation (NDE) and structural health monitoring (SHM) in realistic structures is challenging. Analytical methods that can perform efficient modeling of wave propagation are limited to simple geometries. Realistic structures with complicated geometries are usually modeled with the FEM. However, the accuracy of the FEM models needs to be carefully assessed before they can be used to simulate the minute changes induced by structural damage. The modeling of the interaction between piezoelectric wafer active sensor (PWAS) and structural waves is addressed. Two main issues are discussed: (a) modeling of pitch-catch ultrasonic waves betwwen a PWAS transmitter and a PWAS receiver by comparison exact Lamb wave solutions, various FEM results, and experimental results; (b) nonlinear FEM models for localized structural sensing. The paper ends with summary and conclusions followed by recommendations for further work.

Original languageEnglish
Title of host publication53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Publication statusPublished - 1 Dec 2012
Externally publishedYes
Event53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 - Honolulu, United States of America
Duration: 23 Apr 201226 Apr 2012

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Conference

Conference53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012
CountryUnited States of America
CityHonolulu
Period23/04/1226/04/12

Cite this

Gresil, M., Giurgiutiu, V., & Shen, Y. (2012). Predictive simulation of structural sensing. In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference [AIAA 2012-1491] (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference).