Masters Theses
Keywords and Phrases
Additive manufacturing; Finite element analysis; Fused deposition modeling; Molding tool; Topology optimization
Abstract
"Fused deposition modeling (FDM) technology has been used in additive manufacturing for years and is able to significantly reduce both manufacturing time and cost for production tooling and end-use parts. Autoclave molding is one of the conventional tools used to produce composite parts. In autoclave molding, the soft composite material is positioned on the molding tool, and then subjected to vacuum and elevated temperatures to facilitate the curing of the resin. With additive manufacturing (AM), it is possible to fabricate the molding tool with a sparse internal structure, thereby reducing the fabrication time and cost compared to a solid tool. This thesis compares two different approaches to design the sparse internal structure of a mold {acute}{esc}p03 by using a sparse double dense structure and by using topology optimization geometry. To ensure a fair comparison, the amount of material used to build the tool is kept constant. Two CAD models are designed, each having three possible internal structure structures: solid, sparse double dense structure, and topology optimization geometry. The physical part of the first CAD model is fabricated and used in a compression experiment to validate the results of finite element analysis (FEA) for the three structures. The second CAD model is an autoclave molding tool. Computer simulation is used to predict the performance of this molding tool with each of the three structures after the accuracy of the FEA solver has been proven with the first model."--Abstract, page iii.
Advisor(s)
Leu, M. C. (Ming-Chuan)
Committee Member(s)
Chandrashekhara, K.
Tsai, Hai-Lung
Department(s)
Mechanical and Aerospace Engineering
Degree Name
M.S. in Mechanical Engineering
Publisher
Missouri University of Science and Technology
Publication Date
Spring 2016
Pagination
ix, 51 pages
Note about bibliography
Includes bibliographical references (page 50).
Rights
© 2016 Shixuan Meng, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Manufacturing processes -- ResearchSolid freeform fabricationFinite element method
Thesis Number
T 10882
Electronic OCLC #
952596902
Recommended Citation
Meng, Shixuan, "Effect of sparse-build internal structure on performance of fused deposition modeling parts" (2016). Masters Theses. 7512.
https://scholarsmine.mst.edu/masters_theses/7512