|
|
||
|
|
|
|
This and the next image are from:
J.S. Yang, Y. Ziong, L. Ma and L.Z. Wu (Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, PR China),
“Vibration and damping performances of carbon fiber composite pyramidal truss sandwich panels embedded with viscoelastic layers”, ECCM16=16th European Conference on Composite Materials, Veville, Spain, 22026 June 2014
ABSTRACT: The vibration and damping performances of carbon fiber composite pyramidal truss sandwich panels with viscoelastic layers embedded in the face sheets were investigated in this paper. carbon fiber composite pyramidal truss sandwich panels containing different thickness of viscoelastic layers were manufactured using a hot press moulding method. Analytical models based on modal strain energy approach were developed using ABAQUS software to estimate the damping property of the hybrid sandwich structures. A set of modal tests were carried out to investigate the vibration and damping characteristics of such hybrid sandwich panels with or without viscoelastic layers. The numerical simulation results showed good agreement with the experimental tests. The damping loss factors of hybrid sandwich panels increased distinctly compared with previous sandwich panels due to the viscoelastic layer embedded in the face sheets.
Page 156 / 180