Hysteretic nonlinearity analysis in damaged composite plates using guided waves
Yousra BaccoucheLAUM, CNRS, Université du Maine , Avenue O. Messiaen, 72085 Le Mans, [email protected] , [email protected] , [email protected] , [email protected]Mourad BentaharLAUM, CNRS, Université du Maine , Avenue O. Messiaen, 72085 Le Mans, [email protected] , [email protected] , [email protected] , [email protected]Charfeddine MechriLAUM, CNRS, Université du Maine , Avenue O. Messiaen, 72085 Le Mans, [email protected] , [email protected] , [email protected] , [email protected]Rachid El GuerjoumaLAUM, CNRS, Université du Maine , Avenue O. Messiaen, 72085 Le Mans, [email protected] , [email protected] , [email protected] , [email protected]Mohamed Hédi Ben GhozlenUniversity of Sciences Materials Physics Laboratory, . Rte Soukra, 3000, Sfax, [email protected]
2013en
ABI
Annotatsiya
Sensitivity of nonlinear acoustic methods to the presence and the evolution of micro-damage has been proven in various studies on a wide range of materials. In this contribution, a guided wave approach is proposed to characterize polymer based composite plates taken at intact as well as damaged states. The changes in the nonlinear hysteretic parameters are observed by changing the order of the excited flexural resonances. The analysis is based on the evolution of the velocity frequency dispersion of the generated guided waves, where flexural modes are considered separately and together as a function of the dynamic strain.
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