Finite Element Analysis of the Impact Behavior of Sandwich Panels with Nanocomposite Face sheet (Epoxy/ Fiberglass/Nanosilica)

محورهای موضوعی : composite materials

Arash Azadi ¹ (Department of Mechanical Engineering, Khoramabad Branch, Islamic Azad University, Khoramabad, Iran)
Mahdi Karami Khorramabadi ² (Department of Mechanical Engineering, Khoramabad Branch, Islamic Azad University, Khoramabad, Iran)
Maziar Mahdipour Jalilian ³ (Department of Mechanical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran)

تاریخ دریافت : 1401/02/06 تاریخ پذیرش : 1401/05/27 تاریخ انتشار : 1402/03/11

کلید واژه: nanosilica, Finite element method (FEM), Impact Test, Sandwich panel, nanocomposite,

چکیده مقاله :

In this research, the impact behavior of nanocomposite sandwich panels with epoxy/fiberglass/nanosilica face sheet were assessed by the finite element method. In the first step, the mechanical properties of the nanoparticle-containing composite should be obtained. A unit cell of fabric was designed in Catia software and placed within the designed polymeric matrix. The mechanical properties of this unit cell were defined as a new matrix and the nanoparticles were randomly dispersed in the new matrix using a Python code. The elastic properties of the modeled nanocomposite were obtained using Abaqus software via applying periodic boundary conditions based on the mean volumetric stress. In the next step, the sandwich structure was subjected to impact loads at various speeds and contact force-time diagrams were plotted using Abaqus software. The modeled results were compared with the known experimental data which showed a high accuracy in predicting the mechanical properties and impact behavior of the nanocomposite sandwich structures.

منابع و مأخذ:

• Birman, V., Kardomateas, G. A., Review of Current Trends in Research and Applications of Sandwich Structures, Composites Part B: Engineering, Vol. 142, 2018, pp. 221-240, 1016/j.compositesb.2018.01.027.


• Guo, K., Zhu, L., Li, Y., and Yu, T., Numerical Study on Mechanical Behavior of Foam Core Sandwich Plates Under Repeated Impact Loadings, Composite Structures, Vol. 224, 2019, pp. 111030, 1016/j.compstruct.2019.111030.


• Wang, L., Liu, W., Wan, L., Fang, H., and Hui, D., Mechanical Performance of Foam-Filled Lattice Composite Panels in Four-Point Bending: Experimental Investigation and Analytical Modeling, Composites Part B: Engineering, Vol. 67, 2014, pp. 270-279, 1016/j.compositesb.2014.07.003.


• Feng, D., Aymerich, F., Effect of Core Density on The Low-Velocity Impact Response of Foam-Based Sandwich Composites, Composite Structures, Vol. 239, 2020, pp. 112040, 1016/j.compstruct.2020.112040.


• Rizov, V., Mladensky, A., Mechanical Behavior of Composite Sandwich Structures Subjected to Low Velocity Impact–Experimental Testing and Finite Element Modeling, Polymers and Polymer Composites, Vol. 16, No. 4, 2008, pp. 233-240, 1177/096739110801600402.


• Feli, S., Mahdipour Jalilian, M., Three-Dimensional Solution of Low-Velocity Impact on Sandwich Panels with Hybrid Nanocomposite Face Sheets, Mechanics of Advanced Materials and Structures, Vol. 25, No. 7, 2018, pp. 579-591, 1080/15376494.2017.1285465.


• Barbero, E. J., Finite Element Analysis of Composite Materials Using Abaqus, CRC press, Boca Raton, USA, 2013, pp. 91-173.