Computational Study of the Mechanical Behavior of Steel Produced by Selective Laser Melting; AIP Conference Proceedings; Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016

Bibliographic Details
Parent link:	AIP Conference Proceedings Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020235, 4 p.]
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:	Zinovieva O. S., Zinoviev A., Ploshikhin V., Romanova V., Balokhonov R. R. Ruslan Revovich
Summary:	Title screen A two-dimensional numerical analysis of the evolution of grain structure observed during selective laser melting and of the mesomechanical behavior of additive manufactured specimens is performed. Cellular automata finitedifference model is developed to simulate the evolution of grain structure. A heat equation is solved with the use of the classical finite-difference scheme. The cellular automata model for the simulation of microstructural development is based on the approach put forward by Rappaz and Gandin. The Goldak double ellipsoid heat source model is adopted to describe the heat input during laser additive manufacturing process. An elastoplastic constitutive model including isotropic strain hardening is used to describe the mechanical response of additive manufactured specimens. A dynamic boundary-value problem in a plane strain formulation is solved numerically with the use of a Wilkins-type finitedifference scheme. The mesoscopic stress-strain state of additive manufactured specimens subjected to the uniaxial tension is analyzed. The focus is on the role of the inhomogeneous material microstructure in the evolution of the stressstrain state. A combined effect of grain structure and boundary conditions is investigated. Режим доступа: по договору с организацией-держателем ресурса
Language:	English
Published:	2016
Subjects:	электронный ресурс труды учёных ТПУ численные исследования механическое поведение стали селективное плавление лазерное плавление клеточные автоматы деформационное упрочнение плоские деформации напряженно-деформированные состояния
Online Access:	http://dx.doi.org/10.1063/1.4966529
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652816