Masters Theses

Fangquan Wang

Abstract

"Functionally Gradient Materials (FGMs) feature smooth transition from one material to another within a single object. FGMs modeling is considered to be one of the new challenges in Computer Aided Design (CAD) area. To overcome this challenge, this thesis presents a composite approach to model FGMs. The input in STL format can be meshed and voxelized in FGMs modeling system. The material composition in each voxel can be generated from multiple different types of control features. And LTI filters including Gaussian Filter and Average Filter are applied to blur default material features in order to generate FGMs inside models. The LTI filtering method gives an effective and controllable approach to distribute material composition in FGMs area. Forbidden zone mapping function is also proposed in this thesis to actively eliminate the forbidden zone in FGMs modeling. Unwanted material composition can be effectively removed from the modeling process while the original material transition trend is preserved. At last, Erosion Function is introduced in the thesis to generate FGMs area between outer portion and inner portion of an object. Material composition contour level map is generated to help the tool path plan for Additive Manufacturing (AM)"--Abstract, page iii.

Advisor(s)

Liou, Frank W.

Committee Member(s)

Leu, M. C. (Ming-Chuan)
Pan, Heng

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Manufacturing Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2016

Pagination

vii, 40 pages

Note about bibliography

Includes bibliographical references (pages 38-39).

Rights

© 2016 Fangquan Wang, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Functionally gradient materialsComputer-aided designComposite materials -- Computer simulation

Thesis Number

T 10986

Electronic OCLC #

958294145

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