# Substantiation of the Design Features of Sandwich Panels for Container Wall Lining

## Authors

• G. L. Vatulia O. M. Beketov National University of Urban Economy in Kharkiv,, Ukraine
• A. O. Lovska Ukrainian State University of Railway Transport, Ukraine
• S. S. Myamlin Ukrainian State University of Railway Transport, Ukraine
• Ye. S. Krasnokutskyi JSC «Ukrzaliznytsia», Ukraine

## Keywords:

ISO container, container lining, sandwich panel, sandwich panel strength, container transportation

## Abstract

Purpose. The main purpose of this work is to substantiate the design features of sandwich panels for the manufacture of container walls of size 1SS. Methodology. To ensure the strength of the container walls, it is proposed to use sandwich panels as their components. This involves the manufacture of a sandwich panel from two metal sheets, between which a material with energy-absorbing properties is placed. This solution helps to improve the strength of the container by reducing its load. To determine the thickness of the panel sheet, the corresponding calculations were performed using the Bubnov-Galerkin method. It is taken into account that the sheet is a thin-walled plate subjected to an evenly distributed load. To improve the stiffness of the sheet, it is proposed to make it corrugated. The analysis of the corrugations has led to the conclusion that it is most appropriate to use corrugations with a rectangular configuration. Findings. The strength of the sandwich panel was calculated. The spatial model of the sandwich panel was created in the SolidWorks software package, and the strength calculation was performed in SolidWorks Simulation, which implements the finite element method. The calculations took into account the most unfavorable loading mode of the container during rail transportation - shunting impact. The calculation was performed on the example of the container's end wall, since it is the wall that is subjected to the highest loads in the event of a shunting collision with a platform car. The strength calculations showed that the maximum stresses in the sandwich panel made of corrugated sheets are about 258 MPa, which is 16% lower than the permissible stresses. The maximum displacements in the sandwich panel assemblies occur in its middle part and are equal to 3.1 mm. Originality. The design of the sandwich panels that form the end walls of the container is scientifically substantiated. The rational configuration of the corrugations of the sandwich panel sheets is determined. Practical value. The study will contribute to the development of recommendations for the design of modern modular-type vehicle structures and improve the efficiency of the transport industry.

## References

Vatulia, G., Lovska, A., & Krasnokutskyi, Y. (2022). Mathematical modeling of the vertical load of a hopper-type container placed on a long-base structure of a platform car. Bulletin of the National Technical Uni-versity «KhPI» Series: Dynamics and Strength of Machines, 1, 34-39. DOI: https://doi.org/10.20998/2078-9130.2022.1.264323 (in Ukraіnian)

Vagoni vantazhni. Zagalni vimogi do rozrahunkiv ta proektuvannya novih i modernizovanih vagoniv koliyi 1520 mm (nasamohidnih), 250 DSTU 7598:2014 (2015). (in Ukraіnian)

Vantazhni konteinery. Konteinery universalni (intermodalni) dlia povitrianykh i nazemnykh perevezen. Tekhnichni umovy ta metody vyprobuvan, DSTU ISO 8323:2015 (2015). (in Ukraіnian)

Vantazhni konteinery serii 1. Tekhnichni vymohy ta metody vyprobovuvannia. Chastyna 1. Konteinery zahal-noi pryznachenosti universalni, 34 DSTU ISO 1496-1:2013 (2014). (in Ukraіnian)

Al-Sukhon, A., & ElSayed, M. S. (2021). Design optimization of hopper cars employing functionally graded honeycomb sandwich panels. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 236(8), 920-935. DOI: https://doi.org/10.1177/09544097211049640 (in English)

Chuan-jin, O., & Bing-tao, L. (2020). Research and application of new multimodal transport equipment-swap bodies in China. In E3S Web of Conferences (Vol. 145, P. 1-4). DOI: https://doi.org/10.1051/e3sconf/202014502001 (in English)

Fomin, O., Gerlici, J., Gorbunov, M., Vatulia, G., Lovska, A., & Kravchenko, K. (2021). Research into the Strength of an Open Wagon with Double Sidewalls Filled with Aluminium Foam. Materials, 14(12), 3420-3430. DOI: https://doi.org/10.3390/ma14123420 (in English)

Fomin, O., Gerlici, J., Vatulia, G., Lovska, A., & Kravchenko, K. (2021). Determination of the Loading of a Flat Rack Container during Operating Modes. Applied Sciences, 11(16), 7623-7636. DOI: https://doi.org/10.3390/app11167623 (in English)

Fomin, O., Lovska, A., Gorbunov, M., Gerlici, J., & Kravchenko, K. (2021). Dynamics and strength of circular tube open wagons with aluminum foam filled center sills. Materials, 14(8), 1915-1927. DOI: https://doi.org/10.3390/ma14081915 (in English)

Giriunas, K., Sezen, H., & Dupaix, R. B. (2012). Evaluation, modeling, and analysis of shipping container building structures. Engineering Structures, 43, 48-57. DOI: https://doi.org/10.1016/j.engstruct.2012.05.001 (in English)

Khadjimukhametova, М. А., & Merganov, A. M. (2020). Development of the Design and Conditions of Operation of Containers for Transportation of Fruit and Vegetable Products. International Journal of Recent Technology and Engineering (IJRTE), 8(5), 252-256. DOI: https://doi.org/10.35940/ijrte.e4856.018520 (in English)

Technical specification for steel dry cargo container. Specification NO: «CTX 20 DVDR – Domestic Spec. HH». (2013). Retrieved from https://www.passeidireto.com/arquivo/87185868/technische-beschreibung-seecontainer (in English)

Wróbel, A., Płaczek, M., & Buchacz, A. (2017). An Endurance Test of Composite Panels. Solid State Phenome-na, 260, 241-248. DOI: https://doi.org/10.4028/www.scientific.net/ssp.260.241 (in English)

2023-03-28

## How to Cite

Vatulia, G. L., Lovska, A. O., Myamlin, S. S., & Krasnokutskyi, Y. S. (2023). Substantiation of the Design Features of Sandwich Panels for Container Wall Lining. Science and Transport Progress, (1(101), 55–63. https://doi.org/10.15802/stp2023/280009

## Section

ROLLING STOCK AND TRAIN TRACTION