Theses and Dissertations
ORCID
https://orcid.org/0009-0007-1369-8937
Issuing Body
Mississippi State University
Advisor
Priddy, Matthew W
Committee Member
McClelland, Zackery B
Committee Member
Stone, Tonya W
Date of Degree
12-8-2023
Original embargo terms
Embargo 2 Years
Document Type
Graduate Thesis - Open Access
Major
Mechanical Engineering
Degree Name
Master of Science (M.S.)
College
James Worth Bagley College of Engineering
Department
Department of Mechanical Engineering
Abstract
Traditional methods for increasing the energy absorption of a structure involve using a stronger material or increasing the volume of the structure, resulting in a higher cost or additional weight. Additive manufacturing (AM) can be used to maximize the energy absorption of materials with the ability to create complex geometries such as cellular structures. Previous work has shown that the energy absorption of additively manufactured parts can be improved through functionally graded cellular structures; however, this strategy has not been applied to ultra-high strength steel materials. This work characterizes the effect of multiple functional-grading strategies (e.g. uniform, rod-graded, size-graded) on the energy absorption to weight ratio of laser powder bed fusion (L-PBF) produced M300 maraging steel lattice structures. Each structure is designed with the same average relative density to analyze the structures on an equal mass basis, to evaluate manufacturability, mechanical response, and compare experimental results with numerical simulation.
Recommended Citation
Sampson, Bradley Jay, "Mechanical characterization of functionally graded M300 maraging steel cellular structures" (2023). Theses and Dissertations. 6033.
https://scholarsjunction.msstate.edu/td/6033
Included in
Applied Mechanics Commons, Computer-Aided Engineering and Design Commons, Manufacturing Commons, Metallurgy Commons, Other Engineering Commons, Structural Materials Commons