Fracture Behavior of Cellular Structures Obtained by Selective Laser Melting

I. S. Kamantsev; Yu. N. Loginov; S. V. Belikov; S. I. Stepanov; M. S. Karabanalov; A. I. Golodnov

doi:10.17804/2410-9908.2020.4.035-047

I. S. Kamantsev, Yu. N. Loginov, S. V. Belikov, S. I. Stepanov, M. S. Karabanalov, A. I. Golodnov

FRACTURE BEHAVIOR OF CELLULAR STRUCTURES OBTAINED BY SELECTIVE LASER MELTING

DOI: 10.17804/2410-9908.2020.4.035-047

An example of samples with a cellular architecture, obtained by selective laser melting,
is used to study the influence of the building direction of cellular objects on the characteristics of fracture under cyclic loading. The origin of their fracture has been revealed. The mechanism providing increased fatigue fracture resistance of objects which, along with the cellular structure, have anisotropy of properties due to the technological features of their production has been determined.

Acknowledgement: This work was partially supported within the framework of the event “Creation and Func-tioning of a Network of International Scientific and Methodological Centers for the Expansion of the Best International Practices of Training, Retraining, and Internship of Advanced Digital Economy Personnel in the Fields of Mathematics, Informatics, and Technology” (Agreement No. 075-15-2019- 1907 dated 09.12.2019) and in accordance with the research plan for the IES UB RAS, theme AAAA-A18-118020790145-0. The equipment installed in the Plastometriya collective use center, IES UB RAS, was used in the experimental investigation.

Keywords: selective laser melting, cellular structures, high-cycle fatigue, fracture

References:

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И. С. Каманцев, Ю. Н. Логинов, С. В. Беликов, С. И. Степанов, М. С. Карабаналов, А. И. Голоднов

ОСОБЕННОСТИ РАЗРУШЕНИЯ ЯЧЕИСТЫХ СТРУКТУР, ПОЛУЧЕННЫХ ЛАЗЕРНЫМ СЕЛЕКТИВНЫМ СПЛАВЛЕНИЕМ

В работе на примере образцов с ячеистой архитектурой, полученных лазерным селективным сплавлением, рассмотрено влияние направления синтеза объектов ячеистой формы на характеристики разрушения в условиях циклического нагружения. Выявлены особенности в характере их разрушения и установлен механизм, обеспечивающий повышенное сопротивление усталостному разрушению объектов, имеющих наряду с ячеистым строением анизотропию свойств, обусловленных технологическими особенностями получения.

Благодарность: Работа поддержана в рамках мероприятия "Создание и функционирование сети международных научно-методических центров для распространения лучших международных практик подготовки, переподготовки и стажировки продвинутых кадров цифровой экономики в областях математики, информатики, технологий" (Соглашение №075-15-2019-1907 от 09.12.2019) и в соответствии с планом работ ИМАШ УрО РАН по теме АААА-А18-118020790145-0 в части определения характеристик сопротивления усталостному разрушению. Экспериментальная часть работы выполнена с использованием оборудования ЦКП «Пластометрия» ИМАШ УрО РАН.

Ключевые слова: селективное лазерное сплавление, ячеистые структуры, многоцикловая усталость, разрушение

Библиография:

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Библиографическая ссылка на статью

Fracture Behavior of Cellular Structures Obtained by Selective Laser Melting / I. S. Kamantsev, Yu. N. Loginov, S. V. Belikov, S. I. Stepanov, M. S. Karabanalov, A. I. Golodnov // Diagnostics, Resource and Mechanics of materials and structures. - 2020. - Iss. 4. - P. 35-47. -
DOI: 10.17804/2410-9908.2020.4.035-047. -
URL: http://dream-journal.org/issues/content/article_294.html
(accessed: 21.12.2024).