Tensometric study of the stress-strain state of the fuel tank

Solid composite cryogenic fuel tank was studied during tests with excess pressure of liquid nitrogen during repeated filling/draining cycles. An algorithm for processing tensometric measurements was created and a computational experiment was performed. To control the condition of thin-walled power shells made of carbon fiber, a visual analytical technology of processing and assessing the condition of the structure during tests with excess pressure of liquid nitrogen was proposed and implemented. It is confirmed that the structure in the process of testing effectively accepts the load and is deformed with no differences both under repeted loading and increased pressure.