Original Paper

CEAS Aeronautical Journal

, Volume 4, Issue 1, pp 35-48

First online:

Local interaction simulation approach for modeling wave propagation in composite structures

  • Kalyan S. NadellaAffiliated withDepartment of Aerospace Engineering, University of Michigan
  • , Carlos E. S. CesnikAffiliated withDepartment of Aerospace Engineering, University of Michigan Email author 

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This paper presents a local interaction simulation approach (LISA) numerical method to analyze the guided wave propagation in composite structures. The method is based on recursive iterative equations, derived from the elastodynamic equilibrium equations. Derivation of the iterative equations is presented for a generalized orthotropic medium in a non-principal axis frame with non-uniform spatial discretizations. The new iterative equations have the capability to model generic laminated composite plates. The results show the validation of the numerical simulations through comparisons with experimental studies of laminated composite plates.


Structural health monitoring (SHM) Guided waves (GW) Local interaction simulation approach (LISA) Sharp interface model (SIM) Finite difference (FD) Composite plates Wave propagation