Multiscale Simulation of Porous Quasi-Brittle Ceramics Fracture

Multiscale Simulation of Porous Quasi-Brittle Ceramics Fracture

Bibliographic Details
Parent link:Applied Mechanics and Materials: Scientific Journal
Vol. 756 : Mechanical Engineering, Automation and Control Systems (MEACS2014).— 2015.— [P. 196-204]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ) Научно-образовательная лаборатория "Динамическое моделирование и контроль ответственных конструкций" (НОЛ ДМиК ОК)
Other Authors: Skripnyak V. V., Skripnyak E. G., Skripnyak V. A. Vladimir Albertovich, Vaganova I. K., Bragov A. M., Lomunov A. K., Igumnov L. A.
Summary:Title screen
Multiscale computer simulation approach has been applied to research mechanisms of failure in ceramic nanostructured ceramics under dynamic loading. The obtained experimental and theoretical data indicate quasi-brittle fracture of nanostructured ZrB[2] ceramics under dynamic compression and tension. Damage nucleation and accumulation in quasi brittle nanostructured ceramics were simulated under impact loadings. Fracture of nanostructured ultra-high temperature ceramics under pulse and shock-wave loadings is provided by fast processes of intercrystalline brittle fracture and relatively slow processes of quasi-brittle failure via growth and coalescence of opened microcracks. For nanostructures ZrB[2] ceramics with porosity of 7 %, the compressive strength at strain rate of 1800 s{-1} is equal to 2440±50 MPa, the tensile strength at strain rate of 300 s{-1} is equal to 155±20 MPa.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2015
Series:Material Engineering and Technologies
Subjects:
электронный ресурс
труды учёных ТПУ
динамическое разрушение
многомасштабное моделирование
пористые структуры
керамика
Online Access:http://dx.doi.org/10.4028/www.scientific.net/AMM.756.196
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641315

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