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Rafaela Vannutelli with signature.pdf (3.41 MB)

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Mechanical Behavior of 3D Printed Lattice-Structured Materials

Vannutelli, Rafaela S
http://rave.ohiolink.edu/etdc/view?acc_num=ysu1516313745997898

Abstract Details

2017, Master of Science in Engineering, Youngstown State University, Department of Mechanical, Industrial and Manufacturing Engineering.
Lattice structures are created by the repetition of a unit cell where solid struts connected to each other provide parts that combine lightweight and strength. This makes the use of cellular solids advantageous in many applications, varying from engineering to industrial areas. This work focused on designing and mechanical testing of different lattices using 3D printing methods and compression testing. Initially, four different lattices were designed using SolidWorks. Then, the parts were 3D printed from Inconel 718 powders using selective laser melting (SLM). Compression testing of these parts provided mechanical properties that were later compared to a finite element analysis (FEA) model. The four geometries were also 3D printed from NiMnGa powders using binder-jetting technique. This process delivers porous structures that are required in functional materials made of NiMnGa magnetic shape memory alloys (MSMAs) in order to explore the shape memory effects (SMEs). Modeling of these parts provided a better understanding of the compressive behavior of porous structures. Although NiMnGa materials have weak mechanical properties, by creating lattice structures, it was possible to improve the mechanical and functional characteristics and to create parts with controlled porosity, and strength.
C. Virgil Solomon, Dr. (Advisor)
Hazel Marie, Dr. (Committee Member)
Jae Joong Ryu, Dr. (Committee Member)
112 p.
Mechanical Engineering
Lattice structures; lightweight; strength; compression testing

Recommended Citations

Citations

  • Vannutelli, R. S. (2017). Mechanical Behavior of 3D Printed Lattice-Structured Materials [Master's thesis, Youngstown State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1516313745997898

    APA Style (7th edition)

  • Vannutelli, Rafaela. Mechanical Behavior of 3D Printed Lattice-Structured Materials. 2017. Youngstown State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ysu1516313745997898.

    MLA Style (8th edition)

  • Vannutelli, Rafaela. "Mechanical Behavior of 3D Printed Lattice-Structured Materials." Master's thesis, Youngstown State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1516313745997898

    Chicago Manual of Style (17th edition)

ysu1516313745997898
6,768
© 2017, all rights reserved.
This open access ETD is published by Youngstown State University and OhioLINK.