A Rapid Fatigue Analysis Method of Aluminum Honeycomb Structure with Defects Based on Static Test and Numerical Simulation
Volume 7, Issue 5, October 2019, Pages: 365-372
Received: Nov. 9, 2019;
Published: Dec. 3, 2019
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Zhao Qian, Shanghai Institute of Mechanical and Electrical Engineering, Shanghai, China
Ge Meng, Department of Aerospace Engineering, Harbin Institute of Technology, Harbin, China
Zhang Shunjia, Shanghai Institute of Mechanical and Electrical Engineering, Shanghai, China
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At present, most of the substrates of the multifunctional components are honeycomb sandwich structures. Therefore, the study on the fatigue characteristics of honeycomb sandwich structures with defects is helpful to accelerate the engineering application process of the multifunctional structures.In order to study the fatigue characteristics of multi-functional structure under three conditions of tension, compression and three-point bending, the author of this paper proposes a rapid fatigue analysis method of based on statics experiment and numerical simulation.Firstly, the static experiments of the structure under three mechanical conditions of tension, compression and three-point bending are carried out, and then the static simulation is carried out with ANSYS software under the same conditions, and the finite element model in ANSYS is modified according to the experimental results. Finally, the fatigue of the aluminum honeycomb sandwich structure with defects under three conditions is calculated quickly by the fatigue analysis tool in ANSYS The analytical expression between the fatigue life and the load level of the structure under different load ratios is obtained by using the least square method.The fatigue analysis method avoids the complicated fatigue experiments, solves the problem of obtaining the fatigue characteristics of the honeycomb sandwich structure with defects at low cost and high speed under different mechanical conditions and greatly improves the analysis efficiency of the fatigue characteristics of the complex structure.
Aluminum Honeycomb Sandwich Structure, Static Mechanical Test, Fatigue Simulation, Lattice Defect, Fatigue Life Curve
To cite this article
A Rapid Fatigue Analysis Method of Aluminum Honeycomb Structure with Defects Based on Static Test and Numerical Simulation, Science Discovery.
Vol. 7, No. 5,
2019, pp. 365-372.
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