The elastic-plastic state of the structure of pipes installed in the tube grid of the heat exchanger when using an electric explosive pulse

Аuthors

Vologin E. E.^1*, Kudryavtsev A. A.¹, Pykhalov A. A.^{1, 2**}

1. Irkutsk National Research Technical University, 83, Lermontov str., Irkutsk, 664074, Russia
2. Irkutsk State Transport University (IrGUPS), 15, Chernyshevsky str., Irkutsk, 664074, Russia

*e-mail: vologinee@istu.edu
**e-mail: pikhalov_aa@irgups.ru

Abstract

The study of the elastic-plastic state of pipes intended for connection to the tube grid of the heat exchanger is carried out. The pipe is distributed by pressure generated by an electric explosive pulse. Thus, the presented study is aimed at a preliminary study of the elastic-plastic behavior of the pipe using experimental data and high-speed photography, which made it possible to determine the magnitude and nature of the deformation movements of the pipe. These data are used to create a nume-rical model that allows you to vary the values of the pulse pressure and other parameters of the presented process. Based on these data, the pipe is arranged in a pipe grid. Numerical modeling was carried out on the basis of finite element analysis of the elastic-plastic state of the pipe. The results of the work confirmed the possibility of industrial application of the presented technology for connecting pipes and a tube grid of a heat exchanger.

Keywords:

heat exchanger, pipe, pipe grating, pulsed pressure source, high-speed photography, elastic-plastic stress-strain state

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