Doctoral Dissertations

Keywords and Phrases

Additive manufacturing; Carbon fiber reinforcement; Multifunctional composites; Structural battery

Abstract

“This study details the research to facilitate fabrication and characterization of novel structural composites reinforced with carbon fibers. Across industries, materials with high performance-to-weight ratio are sought after. Using carbon fibers as secondary phases in these proposed composites, specific characteristics can be tailored in these materials to manufacture strong, lightweight, high performance structures. The first part of the research focused on the improvement in the mechanical properties of the composites using carbon fiber reinforcement. As a part of this study, toughened ceramic composites with predictable failure patterns were produced using carbon fiber inclusions. A closed-form analytical model was developed to enable expedited analyses of various composite designs. A high-speed additive manufacturing process to fabricate high-strength, lightweight structural components using short, long and continuous carbon fiber reinforcement was also established. Therefore, enabling component-level improvement by delivering customizable structures with high strength-to-weight performance at a low cost. The second part of the research expanded this further to a system wide performance-to-weight improvement through the fabrication and characterization of multifunctional composites. As a part of this research multifunctional structural energy composites were additively manufactured with active-conductive material doped polymer matrix cathode and conductive carbon fiber reinforcement as anode. A systematic study conducting mechanical, electrochemical and microstructural analyses helped in establishing the feasibility of the developed composites to facilitate system-level improvements, making them attractive for widespread multifunctional structural applications”--Abstract, page iv.

Advisor(s)

Dong, Xiangyang

Committee Member(s)

Wojnar, Charles S.
Dharani, Lokeswarappa R.
Liou, Frank W.
Wu, Chenglin

Department(s)

Mechanical and Aerospace Engineering

Degree Name

Ph. D. in Aerospace Engineering

Comments

The authors acknowledge support from the NSF CMMI Award number 1930881 and the Intelligent Systems Center at Missouri University of Science and Technology.

Research Center/Lab(s)

Intelligent Systems Center

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2020

Journal article titles appearing in thesis/dissertation

  • A computationally efficient approach for predicting toughness enhancement in ceramic composites with tailored inclusion
  • A comparative study of extrusion deposition of short, long, and continuous carbon fiber reinforced composites for large-scale additive manufacturing
  • Additive manufacturing of 3D structural battery composites with coextrusion deposition of continuous carbon fibers
  • Printing with 3D continuous carbon fiber multifunctional composites via uv-assisted coextrusion deposition
  • Additive manufacturing of a polymer lithium-ion structural battery with 3D continuous carbon fiber anode via coextrusion deposition

Pagination

xvii, 177 pages

Note about bibliography

Includes bibliographic references.

Rights

© 2020 Aditya Raghvendra Thakur, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Thesis Number

T 12056

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