Graduation Semester and Year
2017
Language
English
Document Type
Thesis
Degree Name
Master of Science in Mechanical Engineering
Department
Mechanical and Aerospace Engineering
First Advisor
Robert M Taylor
Abstract
This is a design optimization study that focuses on the value of free size optimization technology on composite structures which incorporates realistic structural requirements and practical manufacturing limitations to achieve an iterative design with effective structural performance. To detail a study on such practical implementation, a sample structure is required. A rectangular composite laminate with a central hole cutout is considered for this study and is designed using finite elemental tools which includes compression, tension and shear loading conditions with load reactions at bolted joints and buckling stability. Free size optimization and size optimization are used in this study to design this laminate and compared with a conventional three zone laminate to estimate the structural integrity of the designs. Various design constraints are implemented that includes static strength, damage tolerance, structural stability, bearing-bypass criteria at bolted joints and manufacturing constraints in this study involves ply drop off effect and tow dimensional limits to reduce ply shape complexity, increase manufacturability and subsequently reducing manufacturing cost. Ply ramp rate effect and ply drop effect are studied by investigating the results with various values, ply dimensions and layout are simplified by implementing a set of rules that induce suitable dimensional limits.
Keywords
Composite materials, Design optimization, Structural and manufacturing constraints, Free- size optimization, Size optimization
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
Polaki, Deepak, "COMPOSITE PLATE OPTIMIZATION WITH STRUCTURAL AND MANUFACTURING CONSTRAINTS" (2017). Mechanical and Aerospace Engineering Theses. 716.
https://mavmatrix.uta.edu/mechaerospace_theses/716
Comments
Degree granted by The University of Texas at Arlington