Abstract

The Thesis simulates the microstructure of powder-based materials for the Powder-bed Fusion 3D printing processes. The microstructure is created with the Random Ballistic Deposition methodology, which simulates the sedimentation of spherical particles under the influence of an external field. For the bulk of particles of the same size, the packing fraction depends on the inter-particle forces among them. In the Thesis, different contact areas between particles are created to simulate the sintering effects. The specimens of simulated microstructures of different contact areas are produced with a 3D stereolithographic printer. The printed specimens are then subjected to testing for their differences in stress-strain relationships. The Thesis demonstrates the feasibility of using 3D printed specimens to evaluate materials properties. The Thesis recommends future research to develop a relationship between the microstructure and the mechanical properties with precision as a function of the contact areas.

Library of Congress Subject Headings

Three-dimensional printing--Materials; Microstructure; Powders--Industrial applications

Publication Date

8-2017

Document Type

Thesis

Student Type

Graduate

Degree Name

Print Media (MS)

Department, Program, or Center

School of Media Sciences (CIAS)

Advisor

Shu Chang

Advisor/Committee Member

Elena Fedorovskaya

Comments

Physical copy available from RIT's Wallace Library at TS171.95 .T43 2017

Campus

RIT – Main Campus

Plan Codes

PRNTMED-MS

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