Wave propagation in sandwich structures with periodic assemblies on elastic foundation under external moving load is studied. Two types of periodic assemblies are considered, namely, a periodic core, and a core with periodically embedded resonators. Wave numbers and traveling wave characteristics are analyzed by introducing a moving coordinate system. Depending on whether the bandgap (attenuation zone) exists, the perturbation due to the external moving load can/cannot propagate through the structure. The bandgap properties of both types of structures in the velocity field are also investigated. It is found that the location and range of the bandgap can be tailored by the physical properties of the core/resonator.
Abu-HilalMMohsenM (2000) Vibration of beams with general boundary conditions due to a moving harmonic load. Journal of Sound and Vibration232: 703–717.
2.
AldareirhemOJBazA (2002) Dynamic stability of periodic stepped beams under moving loads. Journal of Sound and Vibration50: 835–848.
3.
ChebliHOthmanRClouteauD (2006) Response of periodic structures due to moving loads. Comptes Rendus Mecanique334: 347–352.
4.
ChenJSSunCT (2011) Dynamic behavior of a sandwich beam with internal resonators. Journal of Sandwich Structures and Materials13: 391–408.
5.
ChenJSSunCT (2013) Wave propagation in sandwich structures with resonators and periodic cores. Journal of Sandwich Structures and Materials15: 359–374.
6.
ChenYHHuangYHShihCT (2001) Response of an infinite Timoshenko beam on a viscoelastic foundation to a harmonic moving load. Journal of Sound and Vibration241: 809–824.
7.
HasebeRSSunCT (2000) Performance of sandwich structures with composite reinforced core. Journal of Sandwich Structures and Materials2: 75–100.
8.
HenchiKFafardMDhattGTalbotM (1997) Dynamic behaviour of multi-span beams under moving loads. Journal of Sound and Vibration199: 33–50.
9.
HouXDengZZhouJ (2010) Optimal design of box-section sandwich beams subjected to moving load. Structural and Multidisciplinary Optimization42: 531–546.
10.
KatzRLeeCWUlsoyAGScottRA (1987) Dynamic stability and response of a beam subject to a deflection dependent moving load. ASME Journal of Vibration, Acoustics, Stress and Reliability in Design109: 361–365.
11.
KittelC (1986) Introduction to Solid State Physics, New York: Wiley.
12.
LinYHTretheweyMW (1990) Finite element analysis of elastic beams subjected to moving dynamic loads. Journal of Sound and Vibration136: 323–342.
13.
RuzzeneMBazA (2006) Dynamic stability of periodic shells with moving loads. Journal of Sound and Vibration296: 830–844.
14.
RuzzeneMTsopelasP (2003) Control of wave propagation in sandwich plate row with periodic honeycomb core. Journal of Engineering Mechanics129: 975–986.
15.
SteeleCR (1967) The finite beam with a moving load. ASME Journal of Applied Mechanics34: 111–118.
16.
SteeleCR (1973) The Timoshenko beam with a moving load. ASME Journal of Applied Mechanics40: 481–488.
17.
WuJSSheuJJ (1996) An exact solution for a simplified model of the heave and pitch motions of a ship hull due to a moving load and a comparison with some experimental results. Journal of Sound and Vibration192: 495–520.
18.
YangMPapagiannakisAT (2010) A coupled honeycomb composite sandwich bridge-vehicle interaction model. Journal of Mechanics of Materials and Structures5: 617–635.
19.
ZhouJDengZLiuTHouX (2009) Elastic structural response of prismatic metal sandwich tubes to internal moving pressure loading. International Journal of Solids and Structures46: 2354–2371.
20.
ZhouJDengZLiuTHouX (2010) Optimal design of metallic sandwich tubes with prismatic cores to internal shock load. Structural and Multidisciplinary Optimization41: 133–150.
