Preparation and sound transmission loss analysis of carbon fiber composite sandwich panel

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Xianhang Sui ◽  
Qing Cong ◽  
Xianhua Li ◽  
Wenjiong Chen
Keyword(s):  
Carbon Fiber ◽  
Sandwich Panel ◽  
Transmission Loss ◽  
Fiber Composite ◽  
Sound Transmission ◽  
Sound Transmission Loss ◽  
Carbon Fiber Composite ◽  
Loss Analysis ◽  
Composite Sandwich

Bending response of carbon fiber composite sandwich beams with three dimensional honeycomb cores

2014 ◽  
Vol 108 ◽  
pp. 234-242 ◽  
Author(s):  
Jian Xiong ◽  
Li Ma ◽  
Ariel Stocchi ◽  
Jinshui Yang ◽  
Linzhi Wu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Three Dimensional ◽  
Sandwich Beams ◽  
Carbon Fiber Composite ◽  
Composite Sandwich ◽  
Honeycomb Cores ◽  
Bending Response

Prediction of Sound Transmission Loss for Finite Sandwich Panels Based on a Test Procedure on Beam Elements

2013 ◽  
Vol 135 (6) ◽  
Author(s):  
Zhongchang Qian ◽  
Daoqing Chang ◽  
Bilong Liu ◽  
Ke Liu
Keyword(s):  
Sandwich Panel ◽  
Transmission Loss ◽  
Test Procedure ◽  
Sandwich Panels ◽  
Sound Transmission ◽  
Expansion Method ◽  
Bending Stiffness ◽  
Sound Transmission Loss ◽  
Modal Expansion ◽  
Beam Elements

An approach on the prediction of sound transmission loss for a finite sandwich panel with honeycomb core is described in the paper. The sandwich panel is treated as orthotropic and the apparent bending stiffness in two principal directions is estimated by means of simple tests on beam elements cut from the sandwich panel. Utilizing orthotropic panel theory, together with the obtained bending stiffness in two directions, the sound transmission loss of simply-supported sandwich panel is predicted by the modal expansion method. Simulation results indicated that dimension, orthotropy, and loss factor may play important roles on sound transmission loss of sandwich panel. The predicted transmission loss is compared with measured data and the agreement is reasonable. This approach may provide an efficient tool to predict the sound transmission loss of finite sandwich panels.

Sound transmission loss behavior of sandwich panel with different truss cores under external mean airflow

2019 ◽  
Vol 86 ◽  
pp. 714-723 ◽  
Author(s):  
Tao Fu ◽  
Zhaobo Chen ◽  
Hongying Yu ◽  
Xuezhi Zhu ◽  
Yanzheng Zhao
Keyword(s):  
Sandwich Panel ◽  
Transmission Loss ◽  
Sound Transmission ◽  
Sound Transmission Loss

Numerical Simulation and Optimization Design of Foam Core/Carbon Fiber Composite Sandwich Beams

2010 ◽  
Vol 29-32 ◽  
pp. 2256-2261 ◽  
Author(s):  
Jun Li ◽  
Ba Ta Xi
Keyword(s):  
Carbon Fiber ◽  
Optimization Design ◽  
Fiber Composite ◽  
Heterogeneous Material ◽  
Main Process ◽  
Foam Core ◽  
Original Design ◽  
Carbon Fiber Composite ◽  
Simulation And Optimization ◽  
Composite Sandwich

This note presents the main process of optimization design of foam core/carbon fiber composite sandwich which primarily designed for UAV wing beams. During the actual application, the original design provided excessive structural strength and it has certain capacity to be optimized. So the weight of structure can be reduced under the premise of meet the strength requirement. In order to characterize fully the complex mechanical behavior of such a highly heterogeneous material and find the ultimate strength of this structure, MSC.Patran/Nastran has be applied on analysis of this composite sandwich structure. Base on the result of the numerical simulations, the best combination of composite laminated and the material layer thickness have be determined, and the beams structure of the lightweight has be designed ultimately.

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