Analytical estimates of the contact zone area for a pressurized flat-oval cylindrical shell placed between two parallel rigid platesстатья

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[1] Analytical estimates of the contact zone area for a pressurized flat-oval cylindrical shell placed between two parallel rigid plates / E. Lomakin, L. Rabinskiy, V. Radchenko et al. // Meccanica. — 2018. — Vol. 53, no. 15. — P. 3831–3838. The paper presents an analytical estimate for an area of contact for a thin-walled noncircular cylindrical shell placed between two parallel rigid plates with an initial gap and then pressurized hydrostatically up to the contact appearance. The Euler–Bernoulli beam is used to model the shell deformation under the plane strain assumption. Such a simplification allows one to obtain the simplest closed-form estimate for the contact zone area. The first approximation is obtained neglecting the deformation of the curvilinear segments of the flat oval shell cross section while the solution for the curved beam loaded by the homogeneous pressure is considered as a second approximation. The accuracy of the proposed analytical solutions as well as their usability in the preliminary design of thin-walled elements of various cooling systems is validated by the results of both numerical simulations and experimental tests. [ DOI ]

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