Graduation Semester and Year
2015
Language
English
Document Type
Thesis
Degree Name
Master of Science in Mechanical Engineering
Department
Mechanical and Aerospace Engineering
First Advisor
Adnan Ashfaq
Abstract
The main objective of our research is to manufacture topology optimized cellular structures using 3D printing and polymer infusion and obtain their structural response. First, we have obtained topology optimized cellular structure of beam using an in-house topology optimization tool. The Solid Isotropic material with Penalization (SIMP) method of optimization is used for finding the optimal topology. Since we require a continuous structure where we can take advantage of additive manufacturing, a no-penalty approach was chosen. For 3D printing, first the optimized condition for manufacturing was determined. Important parameters on which manufacturing depend are Number of Shells, Infill percentage and Layer thickness. Then we manufacture the optimized structures using Fused Deposition Modeling. Next we fill the voids of the structures using polyurethane foam. The performance of the structures are first assessed by performing static tensile/compression test followed by bending tests and also by using Finite element based stress analysis in ABAQUS
Keywords
Cellular structures
Disciplines
Aerospace Engineering | Engineering | Mechanical Engineering
License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Recommended Citation
Jose, Sachin, "Additive Manufacturing and Stress Analysis of Naturally and Artificially Optimized Celullar Structures" (2015). Mechanical and Aerospace Engineering Theses. 827.
https://mavmatrix.uta.edu/mechaerospace_theses/827
Comments
Degree granted by The University of Texas at Arlington