Effects of local damage on vibration characteristics of composite pyramidal truss core sandwich structure

2014 ◽  
Vol 62 ◽  
pp. 73-87 ◽  
Author(s):  
Jia Lou ◽  
Linzhi Wu ◽  
Li Ma ◽  
Jian Xiong ◽  
Bing Wang
Keyword(s):  
Sandwich Structure ◽  
Vibration Characteristics ◽  
Local Damage ◽  
Truss Core ◽  
Pyramidal Truss

Sound insulation performance of pyramidal truss core sandwich structure with frame

2021 ◽  
pp. 109963622110288
Author(s):  
Yu-Zhou Wang ◽  
Li Ma
Keyword(s):  
Mechanical Properties ◽  
Sandwich Structure ◽  
Transmission Loss ◽  
Low Frequency ◽  
Sound Insulation ◽  
Geometrical Parameters ◽  
Acoustic Performance ◽  
Truss Core ◽  
Pyramidal Truss ◽  
Wave Angle

Recently, sandwich structures have been widely used in different fields because of their good mechanical properties, but these structures are weak in acoustic performance. In this paper, by combining pyramidal truss core sandwich structure with frame, a new structure is proposed with both good mechanical properties and excellent acoustic performance at low frequency. An analytical model of the pyramidal truss core sandwich structure with frame is developed to investigate the sound transmission loss (STL) performance. Finite element method (FEM) is also used to investigate the STL performance at low frequency. The effects of the incident wave angle and the geometrical parameters on the STL of the structure are discussed.

scholarly journals Compressive and Shear Responses of Shaped-sheet Pyramidal Truss Core for Reinforced Sandwich Structure

2014 ◽  
Vol 81 ◽  
pp. 1121-1126
Author(s):  
Sung-Uk Lee ◽  
Dong-Hyo Lee ◽  
Eun-Ho Lee ◽  
Dong-Yol Yang
Keyword(s):  
Sandwich Structure ◽  
Truss Core ◽  
Pyramidal Truss

Bending strength and failure of single-layer and double-layer sandwich structure with graded truss core

2019 ◽  
Vol 226 ◽  
pp. 111204 ◽  
Author(s):  
Yang Sun ◽  
Li-cheng Guo ◽  
Tian-shu Wang ◽  
Liao-jun Yao ◽  
Xin-yang Sun
Keyword(s):  
Double Layer ◽  
Sandwich Structure ◽  
Bending Strength ◽  
Single Layer ◽  
Truss Core

Calculation of design relative density for rational sandwich structure with truss core

2016 ◽  
Vol 59 (1) ◽  
pp. 64-68 ◽  
Author(s):  
V. G. Gainutdinov ◽  
I. N. Abdullin ◽  
S. M. Musavy-Safavy
Keyword(s):  
Relative Density ◽  
Sandwich Structure ◽  
Truss Core
Sign in / Sign up

Export Citation Format

Share Document