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International Applied Mechanics, 2014, Volume 50, Issue 3, pp 281-288.
I. Gracheva.
G. S. Pisarenko Institiute for Problems of Strength, National Academy of Sciences of Ukraine, 2 Timiryazevskaya St., Kyiv, Ukraine, 01014.
Abstract
The effect of thermal deformation on the strength of models of thermal protective coating at temperatures above 1000 °C is studied. The coating is of shell type and made of a carbon/carbon (C/C) composite with varying winding angle. The physical and mechanical characteristics of the composite were determined experimentally in simulated real conditions using equipment available at the Institute for Problems of Strength. The stress–strain state of a thermal protective cylindrical shell of length 340 mm, mid-surface radius 90 mm, and thickness 10 mm subject to heating is solved using the three-dimensional theory of elasticity. The results obtained allow determining the stress state of a thermal protective shell-type coating depending on the type and winding angle of the carbon reinforcement within the temperature range from 20 to 1200 °C.
