Topology optimization of metallic locking compression plates produced using electron beam melting
Bone fixation plates currently used to treat traumatic fractured bones and to promote fracture healing are built with metallic materials such as stainless steel, cobalt and titanium and its alloys (e.g. CoCrMo and Ti6Al4V). However, due to significant differences between the mechanical properties...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/88567 http://hdl.handle.net/10220/45863 |
| _version_ | 1811682022844792832 |
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| author | Al-Tamimi, Abdulsalam Abdulaziz Peach, Chris Bartolo, Paulo |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Al-Tamimi, Abdulsalam Abdulaziz Peach, Chris Bartolo, Paulo |
| author_sort | Al-Tamimi, Abdulsalam Abdulaziz |
| collection | NTU |
| description | Bone fixation plates currently used to treat traumatic fractured bones and to promote
fracture healing are built with metallic materials such as stainless steel, cobalt and titanium and its
alloys (e.g. CoCrMo and Ti6Al4V). However, due to significant differences between the mechanical
properties of these plates and native bone, stress shielding problems causing bone loss lead to
deficient orthopedic treatment. This paper describes the use of Topology Optimization and Electron
Beam Melting to redesign and fabricate novel plates based on a commercial standard one,
minimizing the stress shielding phenomenon, by considering a compliance minimization approach,
different mechanical loading conditions (tension and torsion) and volume reduction (25-75%). The
optimized plates, present reduced stiffness due to the optimal distribution of material, maintaining
their structural integrity. The optimized plates fabricated using additive manufacturing showed
adequate shapes and proved the possibility of fabricating designs developed using topology
optimization. |
| first_indexed | 2024-10-01T03:50:14Z |
| format | Conference Paper |
| id | ntu-10356/88567 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:50:14Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/885672020-09-24T20:11:29Z Topology optimization of metallic locking compression plates produced using electron beam melting Al-Tamimi, Abdulsalam Abdulaziz Peach, Chris Bartolo, Paulo School of Mechanical and Aerospace Engineering Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018) Singapore Centre for 3D Printing DRNTU::Engineering::Mechanical engineering::Prototyping Additive Manufacturing Bone Implants Bone fixation plates currently used to treat traumatic fractured bones and to promote fracture healing are built with metallic materials such as stainless steel, cobalt and titanium and its alloys (e.g. CoCrMo and Ti6Al4V). However, due to significant differences between the mechanical properties of these plates and native bone, stress shielding problems causing bone loss lead to deficient orthopedic treatment. This paper describes the use of Topology Optimization and Electron Beam Melting to redesign and fabricate novel plates based on a commercial standard one, minimizing the stress shielding phenomenon, by considering a compliance minimization approach, different mechanical loading conditions (tension and torsion) and volume reduction (25-75%). The optimized plates, present reduced stiffness due to the optimal distribution of material, maintaining their structural integrity. The optimized plates fabricated using additive manufacturing showed adequate shapes and proved the possibility of fabricating designs developed using topology optimization. Published version 2018-09-06T06:24:49Z 2019-12-06T17:06:16Z 2018-09-06T06:24:49Z 2019-12-06T17:06:16Z 2018 Conference Paper Al-Tamimi, A. A., Peach, C., & Bartolo, P. (2018). Topology optimization of metallic locking compression plates produced using electron beam melting. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 364-369. doi:10.25341/D41G66 https://hdl.handle.net/10356/88567 http://hdl.handle.net/10220/45863 10.25341/D41G66 en © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore. 6 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Prototyping Additive Manufacturing Bone Implants Al-Tamimi, Abdulsalam Abdulaziz Peach, Chris Bartolo, Paulo Topology optimization of metallic locking compression plates produced using electron beam melting |
| title | Topology optimization of metallic locking compression plates produced using electron beam melting |
| title_full | Topology optimization of metallic locking compression plates produced using electron beam melting |
| title_fullStr | Topology optimization of metallic locking compression plates produced using electron beam melting |
| title_full_unstemmed | Topology optimization of metallic locking compression plates produced using electron beam melting |
| title_short | Topology optimization of metallic locking compression plates produced using electron beam melting |
| title_sort | topology optimization of metallic locking compression plates produced using electron beam melting |
| topic | DRNTU::Engineering::Mechanical engineering::Prototyping Additive Manufacturing Bone Implants |
| url | https://hdl.handle.net/10356/88567 http://hdl.handle.net/10220/45863 |
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