Applicability of Elastic Elements in the Problem of Stratification of a Transversely Composite Cryogenic Tank
Authors: Egorov A.V., Vasiliev F.Al.
Published in issue: #7(175)/2026
Category: Aviation and Rocket-Space Engineering | Chapter: Design, Construction, Production, Testing, and Operation of Aircraft
The delamination problem is solved based on a finite-element analysis of the stress-strain state of a cylindrical cryogenic tank reinforced with an external elastic mesh. It is assumed that the tank consists of two layers. The inner supporting layer is made of metal, while the outer thermal insulation layer is made of foam. During the cooling process, an undesirable gap forms between the layers, and this is proposed to be eliminated by using a stretched elastic mesh. The gap and the required tension force are evaluated by comparing the results of two calculations: one without the mesh and the other with the mesh. Given the axial symmetry of the tank design, a transversely composite thin-walled ring is chosen as the calculation scheme, which simulates the central cylindrical part of the tank. The loads are represented by the temperature, which cools the inner surface of the metal ring from a normal value to a cryogenic value over time, while the outer surface of the foam ring remains uncooled.
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