Cyclic compression of a multi-layer multi-span corrugated package with plastic deformation of its tapes

Abstract


In this article we present our solution of the problem of cyclic compression of a single-layer and multi-layer corrugation, as well as of a single-layer multi-span corrugation by the FEM method using Ansys. This problem can be considered as the first part of the general complex nonlinear problem of cyclic compression of a multi-layer multi-span corrugated package with dry friction on the contact surfaces. We conducted an analysis of the known published solutions to this problem, and we discovered inaccuracy of some of them and the physical reason resulting in this unacceptable error. A very large number of published solutions to this problem are generally explained by the presence of successful examples of their practical application in the field of aircraft and rocket engine manufacturing, by the wide possibilities of their use as damping devices in both of these areas, and, for example, in the automotive industry, by their high elastic-friction, strength and performance characteristics. All the known published solutions to this problem were obtained for cyclic compression of a multilayer multi-span package in the region of its elastic deformations and for the same geometric shape of the corrugation. The task of improving the mass characteristics of an engineering unit is quite relevant for the development of shock-proof single-shot damping devices that increase the passive safety of the car – bumper protective devices. This can be solved by using single-layer or two-layer, multi-span packages with an optimally selected geometric shape of the corrugation, deformable in the elastic-plastic region. Therefore, the above-mentioned problems are solved taking into account the elastic-plastic deformation of the corrugations for any of their geometric shapes. The obtained solutions make it possible to construct any loading processes in the field of elastic-hysteresis package loops. We also investigated the influence of the parameters of the corrugated package on its elastic-friction characteristics (including the shape of the corrugation and the presence of gaps between the tapes of the package at the tops of their corrugations).


About the authors

R. I. Alkeev

Samara National Research University

Author for correspondence.
Email: wild_cat_ruru@mail.ru

Russian Federation

Senior Lecturer, Department of Engineering Graphics

V. I. Suslikov

Samara National Research University

Email: suslikov_v_i@yandex.ru

Russian Federation

Candidate of Science (Engineering),
Associate Professor of the Department of Aircraft Engine Design and Construction

I. D. Eskin

Samara National Research University

Email: Izold.eskinid@mail.ru

Russian Federation

Candidate of Science (Engineering),
Associate Professor of the Department of Aircraft Engine Design and Construction

References

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