Experimental and simulation analysis of energy absorption capacity of 3D printed structure design

Closed-foam cellular structures are widely used for energy absorption owing to their unique properties. This report investigates features that enhances energy-absorption in foams and compares the effect with other types of structures. A 15mm cubed graded closed foam model with an average densi...

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Main Author: Low, Evans Tze Sheng
Other Authors: Li Hua
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2024
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Online Access:https://hdl.handle.net/10356/176643
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1766432024-05-18T16:54:09Z Experimental and simulation analysis of energy absorption capacity of 3D printed structure design Low, Evans Tze Sheng Li Hua School of Mechanical and Aerospace Engineering LiHua@ntu.edu.sg Engineering Energy absorption Closed-cell foam Closed-foam cellular structures are widely used for energy absorption owing to their unique properties. This report investigates features that enhances energy-absorption in foams and compares the effect with other types of structures. A 15mm cubed graded closed foam model with an average density of 0.6 together with 4 other closed-foam models of densities of 0.2, 0.4, 0.6 and 0.8 will be created with the use of Computer Aided Design (CAD) software. 316 stainless steel was assigned to all 5 models for the simulation with a compression velocity of 1m/s. The test was simulated with the use of ANSYS, a Finite Element Analysis(FEA) software to understand how the addition gradient feature influences energy absorption and other properties. Results showed that energy absorption and density of the closed-foam model are correlated with the total energy absorption of the model increasing as the relative density increases. The graded model performed very well relative to its equivalent density counterpart in terms of energy absorption, performing similarly to the 0.8 density model. Further analysis reveals that overall, the energy absorption efficiency decreases as the density of the model increase with the graded model having the lowest density. Future studies could explore the other different features or combinations that can be implemented together with a closed-cell foam model, farther optimizing and enhancing the energy absorption of the structure. The findings of this study can help contribute experimental data to high density closed-foam models as well as development of lightweight and efficient energy absorbent structures Bachelor's degree 2024-05-17T05:37:33Z 2024-05-17T05:37:33Z 2024 Final Year Project (FYP) Low, E. T. S. (2024). Experimental and simulation analysis of energy absorption capacity of 3D printed structure design. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176643 https://hdl.handle.net/10356/176643 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Energy absorption
Closed-cell foam
spellingShingle Engineering
Energy absorption
Closed-cell foam
Low, Evans Tze Sheng
Experimental and simulation analysis of energy absorption capacity of 3D printed structure design
description Closed-foam cellular structures are widely used for energy absorption owing to their unique properties. This report investigates features that enhances energy-absorption in foams and compares the effect with other types of structures. A 15mm cubed graded closed foam model with an average density of 0.6 together with 4 other closed-foam models of densities of 0.2, 0.4, 0.6 and 0.8 will be created with the use of Computer Aided Design (CAD) software. 316 stainless steel was assigned to all 5 models for the simulation with a compression velocity of 1m/s. The test was simulated with the use of ANSYS, a Finite Element Analysis(FEA) software to understand how the addition gradient feature influences energy absorption and other properties. Results showed that energy absorption and density of the closed-foam model are correlated with the total energy absorption of the model increasing as the relative density increases. The graded model performed very well relative to its equivalent density counterpart in terms of energy absorption, performing similarly to the 0.8 density model. Further analysis reveals that overall, the energy absorption efficiency decreases as the density of the model increase with the graded model having the lowest density. Future studies could explore the other different features or combinations that can be implemented together with a closed-cell foam model, farther optimizing and enhancing the energy absorption of the structure. The findings of this study can help contribute experimental data to high density closed-foam models as well as development of lightweight and efficient energy absorbent structures
author2 Li Hua
author_facet Li Hua
Low, Evans Tze Sheng
format Final Year Project
author Low, Evans Tze Sheng
author_sort Low, Evans Tze Sheng
title Experimental and simulation analysis of energy absorption capacity of 3D printed structure design
title_short Experimental and simulation analysis of energy absorption capacity of 3D printed structure design
title_full Experimental and simulation analysis of energy absorption capacity of 3D printed structure design
title_fullStr Experimental and simulation analysis of energy absorption capacity of 3D printed structure design
title_full_unstemmed Experimental and simulation analysis of energy absorption capacity of 3D printed structure design
title_sort experimental and simulation analysis of energy absorption capacity of 3d printed structure design
publisher Nanyang Technological University
publishDate 2024
url https://hdl.handle.net/10356/176643
_version_ 1814047338989092864