M. G. Petrov, M. P. Lebedev, O. V. Startsev, M. M. Kopyrin
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Effect of Low Temperatures and Moisture on the Strength Performance of Carbon Fiber Reinforced Plastic
The service life of a carbon fiber reinforced plastic used in an aircraft intended for operation under Arctic extreme conditions was studied by longitudinal bend testing in which monotonic loading at various speeds of displacement of the mobile gripper of a testing machine was combined with cyclic loading of specimens with increasing displacement range. The force dependences of the activation energy of failure and the dependences between the failure rate, deformation rate, and service life were characterized. Exposure of the carbon fiber reinforced plastic to subfreezing temperatures was shown to hardly affect the service life. However, periodic transitions through the crystallization temperature of water accumulated in the composite significantly impair its strength performance and safe service life.
期刊介绍：
Doklady Physical Chemistry is a monthly journal containing English translations of current Russian research in physical chemistry from the Physical Chemistry sections of the Doklady Akademii Nauk (Proceedings of the Russian Academy of Sciences). The journal publishes the most significant new research in physical chemistry being done in Russia, thus ensuring its scientific priority. Doklady Physical Chemistry presents short preliminary accounts of the application of the state-of-the-art physical chemistry ideas and methods to the study of organic and inorganic compounds and macromolecules; polymeric, inorganic and composite materials as well as corresponding processes. The journal is intended for scientists in all fields of chemistry and in interdisciplinary sciences.
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