Skip to Main content Skip to Navigation
Conference papers

Lamb Wave Propagation in Complex Geometries - Model Reduction with Approximated Stiffeners

Abstract : Aviation companies show great interest in Structural Health Monitoring (SHM) systems. Although noticeable effort has been put into this research field, so far no system is ready for industrial use. One of the major issues is the processing of complex signals caused by complex aerospace structures. Numerical simulations can help to comprehend these signals, but are often unable to cope with the model detail required. A ray tracing algorithm to approximate Lamb wave propagation is proposed, which enables a huge model reduction. The resulting minimal model mainly consists of the border lines of areas with different geometrical or material properties. Finite element simulations are used to determine the interaction behavior of these transition zones. A two stage concept is used to find paths from an actuator to a sensor and calculate time signals.
Complete list of metadata

Cited literature [15 references]  Display  Hide  Download

https://hal.inria.fr/hal-01021067
Contributor : Anne Jaigu <>
Submitted on : Wednesday, July 9, 2014 - 8:49:55 AM
Last modification on : Friday, March 20, 2015 - 1:17:49 PM
Long-term archiving on: : Thursday, October 9, 2014 - 10:53:59 AM

File

0218.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01021067, version 1

Collections

Citation

Christoph Heinze, Michael Sinapius, Peter Wierach. Lamb Wave Propagation in Complex Geometries - Model Reduction with Approximated Stiffeners. EWSHM - 7th European Workshop on Structural Health Monitoring, IFFSTTAR, Inria, Université de Nantes, Jul 2014, Nantes, France. ⟨hal-01021067⟩

Share

Metrics

Record views

430

Files downloads

436