Description
The ultimate goal of this research is to investigate the propagation of large-amplitude elastic waves in periodic multilayer structures. Sources of nonlinearity are associated with large-strain kinematics, material nonlinearity, and bifurcation paths. In this study, we use a numerical approach to investigate the propagation of nonlinear waves of finite deformation in polymeric structures of finite size. Insights on the dispersion properties of such systems, and their functional dependence on the strain levels, are obtained by postprocessing the time-history results obtained through time-domain simulations. In particular, we highlight the nonlinear effects of amplitude parameters on the bandgaps and wave directionality of the considered systems.
Recommended Citation
Wang, P., Casadei, F., & Bertoldi, K. (2014). Nonlinear wave propagation in periodic multilayer of polymers. In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014 , West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. https://docs.lib.purdue.edu/ses2014/mss/mtfmm/14
Nonlinear wave propagation in periodic multilayer of polymers
The ultimate goal of this research is to investigate the propagation of large-amplitude elastic waves in periodic multilayer structures. Sources of nonlinearity are associated with large-strain kinematics, material nonlinearity, and bifurcation paths. In this study, we use a numerical approach to investigate the propagation of nonlinear waves of finite deformation in polymeric structures of finite size. Insights on the dispersion properties of such systems, and their functional dependence on the strain levels, are obtained by postprocessing the time-history results obtained through time-domain simulations. In particular, we highlight the nonlinear effects of amplitude parameters on the bandgaps and wave directionality of the considered systems.