Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure
In the aerospace and automotive industry, there is an increasing need for lightweight cellular structures for good energy absorbing capabilities. The cellular structures offer numerous benefits over conventional energy-absorbing materials and structures, making it a promising choice for applic...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2024
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| Online Access: | https://hdl.handle.net/10356/176788 |
| _version_ | 1824454638046281728 |
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| author | Lau, Zhan Yung |
| author2 | Du Hejun |
| author_facet | Du Hejun Lau, Zhan Yung |
| author_sort | Lau, Zhan Yung |
| collection | NTU |
| description | In the aerospace and automotive industry, there is an increasing need for lightweight cellular
structures for good energy absorbing capabilities. The cellular structures offer numerous benefits
over conventional energy-absorbing materials and structures, making it a promising choice for
applications such as impact protection, crashworthiness, and vibration damping. However, the
metallic structures used are often expensive and heavier, thus polymeric structures become an
alternative for the design considerations. Additive manufacturing technologies such as MultiJet
Fusion (MJF) technology is particularly suitable for producing cellular structures due to its ability
to cost effectively produce intricate and complex geometries with consistent mechanical
properties.
In this study, the objective is to investigate the effect of curvature walls on energy absorption of
MJF printed cuttlebone-like structures. Four types of lattice structure, namely cuttlebone-like, half
amplitude cuttlebone-like, symmetrical s-shape and straight wall structures were tested at different
loading conditions to investigate their quasi static and dynamic compression energy absorption
behavior. Furthermore, cuttlebone-like structure had the highest maximum energy absorption and peak
load in both quasi static and dynamic compression tests. In quasi static tests, straight wall structure
had the lowest energy absorption capability. In dynamic compression tests, symmetrical s-shape
structures have the lowest energy absorption capability |
| first_indexed | 2025-02-19T03:25:29Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/176788 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:25:29Z |
| publishDate | 2024 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1767882024-05-25T16:49:45Z Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure Lau, Zhan Yung Du Hejun School of Mechanical and Aerospace Engineering MHDU@ntu.edu.sg Engineering In the aerospace and automotive industry, there is an increasing need for lightweight cellular structures for good energy absorbing capabilities. The cellular structures offer numerous benefits over conventional energy-absorbing materials and structures, making it a promising choice for applications such as impact protection, crashworthiness, and vibration damping. However, the metallic structures used are often expensive and heavier, thus polymeric structures become an alternative for the design considerations. Additive manufacturing technologies such as MultiJet Fusion (MJF) technology is particularly suitable for producing cellular structures due to its ability to cost effectively produce intricate and complex geometries with consistent mechanical properties. In this study, the objective is to investigate the effect of curvature walls on energy absorption of MJF printed cuttlebone-like structures. Four types of lattice structure, namely cuttlebone-like, half amplitude cuttlebone-like, symmetrical s-shape and straight wall structures were tested at different loading conditions to investigate their quasi static and dynamic compression energy absorption behavior. Furthermore, cuttlebone-like structure had the highest maximum energy absorption and peak load in both quasi static and dynamic compression tests. In quasi static tests, straight wall structure had the lowest energy absorption capability. In dynamic compression tests, symmetrical s-shape structures have the lowest energy absorption capability Bachelor's degree 2024-05-20T03:27:21Z 2024-05-20T03:27:21Z 2024 Final Year Project (FYP) Lau, Z. Y. (2024). Experiment study on the energy absorption of multi-jet fusion printed cuttlebone-like structures. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176788 https://hdl.handle.net/10356/176788 en B331 application/pdf Nanyang Technological University |
| spellingShingle | Engineering Lau, Zhan Yung Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure |
| title | Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure |
| title_full | Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure |
| title_fullStr | Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure |
| title_full_unstemmed | Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure |
| title_short | Experiment study on energy absorption of multi jet fusion printed cuttlebone-like structure |
| title_sort | experiment study on energy absorption of multi jet fusion printed cuttlebone like structure |
| topic | Engineering |
| url | https://hdl.handle.net/10356/176788 |
| work_keys_str_mv | AT lauzhanyung experimentstudyonenergyabsorptionofmultijetfusionprintedcuttlebonelikestructure |