scholarly journals Micro Fracture Behavior of Composite Honeycomb Sandwich Structure

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 135
Author(s):  
Guangjian Bi ◽  
Jianping Yin ◽  
Zhijun Wang ◽  
Zijian Jia
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Fracture Energy ◽  
Energy Absorption ◽  
Sandwich Structure ◽  
Great Influence ◽  
Energy Curve ◽  
Energy Calculation ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

To study the influence of structure size and composite forms on the mechanical properties of the composite double honeycomb sandwich structure, a composite double honeycomb sandwich structure was initially designed. The dynamic response of a composite double-layer honeycomb sandwich structure under high-speed impact was studied through theoretical analysis and numerical simulation. Ls-dyna software was used to simulate the initially designed composite structure. According to the numerical simulation results and the proposed method for calculating the fracture energy of the composite double honeycomb sandwich structure, the effects of different composite forms on the mechanical properties were analyzed. The results show that the proposed fracture energy calculation method can effectively describe the variation trend of the honeycomb structure and the micro-element fracture situation in the valid time. The fracture energy curve has a high sensitivity to cell density and material, and the strength of the top core has a great influence on the overall energy absorption. Compared with the traditional honeycomb protection structure, the energy absorption of the initially designed composite honeycomb sandwich structure was improved effectively.

Experimental Study on the Mechanical Properties of Two Sandwich Structure Composite Materials

2013 ◽  
Vol 561 ◽  
pp. 466-471
Author(s):  
Chuan Sheng Wang ◽  
Qing Kun Liu
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Tensile Strength ◽  
Composite Materials ◽  
Sandwich Structure ◽  
National Standards ◽  
Honeycomb Sandwich ◽  
Pros And Cons ◽  
Nomex Honeycomb ◽  
Honeycomb Sandwich Structure

According to the relevant national standards, this paper produced Corecell ™ G foam sandwich structure and Nomex honeycomb sandwich structure composite materials specimens. These two materials were carried out tensile, compression, bending and shear experiment. Analyzing and comparing the pros and cons of the two materials in the mechanical properties of tensile strength, compressive strength, shear strength, flexural strength.

Study on Automobile Body Performance of Honeycomb Sandwich Composite Material

2012 ◽  
Vol 567 ◽  
pp. 146-149 ◽  
Author(s):  
Xue Mei Fan ◽  
Jian Feng Wang ◽  
Cheng Jin Duan ◽  
Xiang Xin Xia ◽  
Zhao Hui Wang
Keyword(s):  
Mechanical Properties ◽  
Sandwich Structure ◽  
Testing Machine ◽  
Sandwich Composite ◽  
Element Analysis ◽  
Bending Tests ◽  
Three Point Bending ◽  
Honeycomb Sandwich ◽  
Core Thickness ◽  
Honeycomb Sandwich Structure

In order to analyze the mechanical properties of Carbon/epoxy facings-Aluminum honeycomb sandwich structure, we simulated panels of different layers and core thickness using ABAQUS finite element analysis program. And three-point bending tests and shear tests were made on the same panels using electronic universal testing machine. In addition, we also made the same three-point bending tests on steel tubes to get a comparison with honeycomb sandwich panels. It could be seen that, the simulated results were basically identified with experimental results. The results indicated that core thickness played an important role in the panels’ bulking modulus, and number of carbon fiber layers decided the shear strength. As a whole, honeycomb sandwich structure was suitable for use in the car body with good mechanical properties under premise of lighter.

Analysis and Research of Honeycomb Sandwich Structure for MicroSatellite Based on Equivalent Theory

2010 ◽  
Vol 426-427 ◽  
pp. 472-476 ◽  
Author(s):  
Kan Zheng ◽  
W.H. Liao ◽  
Y.T. Qin
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Sandwich Structure ◽  
Plate Theory ◽  
Mechanical Test ◽  
Element Analysis ◽  
Cell Library ◽  
Finite Element Software ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

With the honeycomb sandwich structure widely used in aerospace, the research of its mechanical properties becomes especially important. All of the finite element analysis software have no corresponding cell library, so before the analysis, the honeycomb sandwich panels should be equivalent processed. The paper by taking the floor of a microsatellite as the research object, used the equivalent plate theory and sandwich plate theory for equivalent processing, then adopted the finite element software to analyze the mechanical properties of the floor under two alternative condition. By compared with analytical solution, the equivalent results were reasonable, and the two methods were basically identical. Meanwhile, the equivalent results provided the reliable basis for the satellite structure optimum design and mechanical test.

Compression, bending, energy absorption properties, and failure modes of composite Kagome honeycomb sandwich structure reinforced by PMI foams

2021 ◽  
pp. 114611
Author(s):  
Shijun Song ◽  
Chao Xiong ◽  
Jian Zheng ◽  
Junhui Yin ◽  
Youchun Zou ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Sandwich Structure ◽  
Failure Modes ◽  
Bending Energy ◽  
Absorption Properties ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

Experimental Analysis and Numerical Simulation on Impact Response of Sand-filled Aluminium Honeycomb Sandwich Structure

2017 ◽  
Vol 86 (2) ◽  
pp. 517-534
Author(s):  
Weiming Luo ◽  
Shaoqing Shi ◽  
Jianhu Sun ◽  
Yuzheng Lv
Keyword(s):  
Numerical Simulation ◽  
Experimental Analysis ◽  
Sandwich Structure ◽  
Impact Response ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

Energy-absorption characteristics of tube-reinforced absorbent honeycomb sandwich structure

2021 ◽  
Vol 255 ◽  
pp. 112946
Author(s):  
Leilei Yan ◽  
Keyu Zhu ◽  
Niu Chen ◽  
Xitao Zheng ◽  
M. Quaresimin
Keyword(s):  
Energy Absorption ◽  
Sandwich Structure ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure ◽  
Absorption Characteristics
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