Influence of layer-thickness proportions and their strength and elastic properties on stress redistribution during three-point bending of tib/ti-based two-layer ceramics composites

Хвостунков, К.А.; Бажин, П.М.; Ni, Q.; Бажина, А.Д.; Чижиков, А.П.; Константинов, А.С.

Авторы: Хвостунков К.А., Бажин П.М., Ni Qing-Qing, Бажина А.Д., Чижиков А.П., Константинов А.С.
Журнал: Metals
Том: 13
Номер: 8
Год издания: 2023
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 1
Последняя страница: 19
Номер статьи: 1480
DOI: 10.3390/met13081480
Аннотация: A mathematical model was developed to determine the order of failure of layers in a two-layer ceramics composite and to determine the conditions for achieving the maximum limit load under three-point loading. The model was set in the space of three “bilayer parameters”: the ratio of the thickness of the lower layer to the whole thickness of the beam, the ratio of Young’s moduli of the lower layer to the upper layer, and the ratio of flexural strengths of the materials of the lower layer to the upper layer. The adequacy of the model obtained was confirmed by experimental results on the three-point bending of the experimental specimens. The experimental samples were two-layer composites consisting of a cermet layer TiB/Ti and a layer of α-Ti. The samples were obtained by free self-propagating high-temperature synthesis (SHS) compression and with varying their thickness. The results obtained make it possible to predict in advance which layer, based on the specific bilayer parameters, will trigger the brittle fracture mechanism as well as to set the maximum destructive load of bilayer composites.
Добавил в систему: Хвостунков Кирилл Анатольевич

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Influence of layer-thickness proportions and their strength and elastic properties on stress redistribution during three-point bending of tib/ti-based two-layer ceramics compositesстатья

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