The Experts below are selected from a list of 171225 Experts worldwide ranked by ideXlab platform

Zongwen Li - One of the best experts on this subject based on the ideXlab platform.

  • experimental study on mechanical properties of the sandwich Composite Structure reinforced by basalt fiber and nomex honeycomb
    Materials, 2020
    Co-Authors: Zongwen Li
    Abstract:

    The new sandwich Composite Structure formed by basalt fiber resin-based sheets and Nomex honeycomb has the advantages of being lightweight and environmentally friendly, as well as having excellent electromagnetic performance. It has very important application prospects in traditional and emerging fields. In this paper, the mechanical properties of this new sandwich Composite Structure are studied. The results show that, under the condition of flatwise compression, increasing the height of the honeycomb is conducive to improving the compressive capacity of the Structure. However, the height should be controlled within a certain range in case of instability and yield of the honeycomb; under the bending conditions, the bending failure mode of the Composite Structure has gone through five stages. Owing to the honeycomb manufacturing process, the orientation of the honeycomb also has a great influence on the bending strength of the Structure. After further analysis, it is found that basalt fiber sheets contribute the most to the bending stiffness of the Structure, and the main role of honeycomb is to provide out-of-plane support. In both cases, the failure of specimens is ductile, and the combined Structure still has a small amount of bearing capacity and maintains structural integrity. Research on this new type of Composite structural material is very beneficial for promoting the application and development of green and lightweight special functional materials.

Abhinav Singhal - One of the best experts on this subject based on the ideXlab platform.

Jie Zhou - One of the best experts on this subject based on the ideXlab platform.

  • Experiments on Reflection and Transmission of Acoustic Porous Metasurface with Composite Structure
    Composite Structures, 2018
    Co-Authors: Yi Fang, Xin Zhang, Jie Zhou
    Abstract:

    A Composite Structure made by a metal-based porous material, namely porous metasurface here, is designed for good sound absorption performance considering both reflection and transmission. The proposed configuration is a periodic Structure containing four slits filled with the porous samples with different thicknesses in one period. Through designing the thicknesses of porous samples, linear phase gradients are generated on reflected and transmitted surfaces respectively, which play key roles for the reflected and refracted behaviors. Using the diffraction theory, the associating behaviors are predicted analytically and also validated by simulations and laboratory tests. Good agreements add confidence on the studies of sound absorption performance. Through adjusting the period length, the good sound absorption can be obtained over a wide range of incident angles at the designed frequency. The proposed Composite Structure has potential to be applied for noise isolation and sound absorption, where sound transmission is unavoidable.

Wang Fang - One of the best experts on this subject based on the ideXlab platform.

  • Application of Composite Structure Bridges in High-speed Railway
    Journal of Shijiazhuang Institute of Railway Technology, 2010
    Co-Authors: Wang Fang
    Abstract:

    Steel and concrete are two different materials. The Composite Structure of steel and concrete can reasonably make use of their respective advantages and avoid the disadvantages. And many special application effects can be achieved if the Composite Structure is applied accurately. The Composite Structure bridge has many advantages. For example,the Structure is economic and reasonable,quality is reliable and service is durable,maintenance work is limited,and so on. It can bring larger vertical stiffness and fits for larger span. It is especially suitable for the need of high-speed railway construction. This paper introduces the main types and characteristics of Composite Structure bridge and some application cases in high-speed railway.

  • Sound Insulation Property of Aluminum Foam with Composite Structure
    Materials for Mechanical Engineering, 2006
    Co-Authors: Wang Fang
    Abstract:

    The sound insulation property of aluminum foam(Al-foam) with Composite Structure was studied using a self-made equipment and sound detector. The sound insulation property of Al-foam with Composite Structure was desirable in the range of sound frequency and sensitive to frequency, with the optimal value of noise damping efficiency 40% in the band of 500-100 Hz. The effect of compounding approaches on sound insulation property was not very obvious but changed though with the cell Structure. The sound insulation property of Al-foam with cell size of 1. 0 mm and porosity of 60% was the best

Sanjeev A Sahu - One of the best experts on this subject based on the ideXlab platform.