Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants

Thumbnail image of item number 1 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Thumbnail image of item number 2 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Thumbnail image of item number 3 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Thumbnail image of item number 4 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Showing 1-4 of 100 pages in this thesis.

PDF Version Also Available for Download.

Description

Topology-based optimization techniques and lattice structures are powerful ways to accomplish lightweight components with enhanced mechanical performance. Recent developments in additive manufacturing (AM) have led the way to extraordinary opportunities in realizing complex designs that are derived from topology and lattice-based structural optimization. The main aim of this work is to give a contribution, in the integration between structural optimization techniques and AM, by proposing a setup of a proper methodology for rapid development of optimized medical implants addressing oseeointegration and minimization of stress shielding related problems. The validity of the proposed methodology for a proof of concept was demonstrated … continued below

Physical Description

x, 89 pages

Creation Information

Peto, Marinela May 2019.

Context

This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided by the UNT Libraries to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 310 times, with 7 in the last month. More information about this thesis can be viewed below.

Who

People and organizations associated with either the creation of this thesis or its content.

Author

Chair

Committee Members

Publisher

Rights Holder

For guidance see Citations, Rights, Re-Use.

  • Peto, Marinela

Provided By

UNT Libraries

The UNT Libraries serve the university and community by providing access to physical and online collections, fostering information literacy, supporting academic research, and much, much more.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this thesis. Follow the links below to find similar items on the Digital Library.

Degree Information

Description

Topology-based optimization techniques and lattice structures are powerful ways to accomplish lightweight components with enhanced mechanical performance. Recent developments in additive manufacturing (AM) have led the way to extraordinary opportunities in realizing complex designs that are derived from topology and lattice-based structural optimization. The main aim of this work is to give a contribution, in the integration between structural optimization techniques and AM, by proposing a setup of a proper methodology for rapid development of optimized medical implants addressing oseeointegration and minimization of stress shielding related problems. The validity of the proposed methodology for a proof of concept was demonstrated in two real-world case studies: a tibia intramedullary implant and a shoulder hemi prosthetics for two bone cancer patients. The optimization was achieved using topology optimization and replacement of solid volumes by lattice structures. Samples of three lattice unit cell configurations were designed, fabricated, mechanically tested, and compared to select the most proper configuration for the shoulder hemi prosthesis. Weight reductions of 30% and 15% were achieved from the optimization of the initial design of the tibia intramedullary implant and the shoulder hemiprosthesis respectively compared to initial designs. Prototypes were fabricated using selective laser melting (SLM) and direct light processing (DLP) technologies. Validation analysis was performed using finite element analysis and compressive mechanical testing. Future work recommendations are provided for further development and improvement of the work presented in this thesis.

Physical Description

x, 89 pages

Language

Item Type

Identifier

Unique identifying numbers for this thesis in the Digital Library or other systems.

Collections

This thesis is part of the following collection of related materials.

UNT Theses and Dissertations

Theses and dissertations represent a wealth of scholarly and artistic content created by masters and doctoral students in the degree-seeking process. Some ETDs in this collection are restricted to use by the UNT community.

About | Browse this Collection

What responsibilities do I have when using this thesis?

Digital Files

When

Dates and time periods associated with this thesis.

Creation Date

  • May 2019

Added to The UNT Digital Library

  • June 9, 2019, 9:09 p.m.

Description Last Updated

  • July 15, 2021, 4:37 p.m.

Usage Statistics

When was this thesis last used?

Yesterday: 0
Past 30 days: 7
Total Uses: 310
More Statistics

Interact With This Thesis

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Thumbnail image of item number 2 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Thumbnail image of item number 3 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.
Thumbnail image of item number 4 in: 'Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Peto, Marinela. Topology and Lattice-Based Structural Design Optimization for Additively Manufactured Medical Implants, thesis, May 2019; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc1505245/: accessed May 29, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .

Back to Top of Screen