Shape change effect of 3D printed polymer honeycomb

Polymer honeycombs, with their light-weight, high stiffness-to-weight ratio, and welldeveloped energy absorption characteristics, are widely used in engineering applications. During their application after crushing, the Shape Change Effect (SCE) is observed, in which the honeycomb bounces s...

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Bibliographic Details
Main Author: Lu, Yang
Other Authors: Yeong Wai Yee
Format: Final Year Project (FYP)
Language:English
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/10356/61947
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author Lu, Yang
author2 Yeong Wai Yee
author_facet Yeong Wai Yee
Lu, Yang
author_sort Lu, Yang
collection NTU
description Polymer honeycombs, with their light-weight, high stiffness-to-weight ratio, and welldeveloped energy absorption characteristics, are widely used in engineering applications. During their application after crushing, the Shape Change Effect (SCE) is observed, in which the honeycomb bounces slowly back to near its original shape. Previous studies have seldom focused on the SCE and the factors affecting SCE, such as honeycomb design shape, loading rate, different polymer materials and second loading. This study used the 3D printing technology PolyJet to fabricate honeycombs and conducted compression test and measurements to understand more about the SCE characteristics and factors affecting SCE in 3D printed honeycombs. Compression tests were carried out on 3 different shapes of honeycomb, namely hexagon, triangle, and circular, with different loading rates and different materials DurusWhite and Fullcure720. In the end, 3 stages of SCE were identified and general conclusions on the factors affecting SCE were reached.
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spelling ntu-10356/619472023-03-04T18:25:53Z Shape change effect of 3D printed polymer honeycomb Lu, Yang Yeong Wai Yee School of Mechanical and Aerospace Engineering NTU Additive Manufacturing Centre DRNTU::Engineering::Mechanical engineering::Prototyping Polymer honeycombs, with their light-weight, high stiffness-to-weight ratio, and welldeveloped energy absorption characteristics, are widely used in engineering applications. During their application after crushing, the Shape Change Effect (SCE) is observed, in which the honeycomb bounces slowly back to near its original shape. Previous studies have seldom focused on the SCE and the factors affecting SCE, such as honeycomb design shape, loading rate, different polymer materials and second loading. This study used the 3D printing technology PolyJet to fabricate honeycombs and conducted compression test and measurements to understand more about the SCE characteristics and factors affecting SCE in 3D printed honeycombs. Compression tests were carried out on 3 different shapes of honeycomb, namely hexagon, triangle, and circular, with different loading rates and different materials DurusWhite and Fullcure720. In the end, 3 stages of SCE were identified and general conclusions on the factors affecting SCE were reached. Bachelor of Engineering (Mechanical Engineering) 2014-12-12T02:45:47Z 2014-12-12T02:45:47Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61947 en Nanyang Technological University 32 p. application/pdf
spellingShingle DRNTU::Engineering::Mechanical engineering::Prototyping
Lu, Yang
Shape change effect of 3D printed polymer honeycomb
title Shape change effect of 3D printed polymer honeycomb
title_full Shape change effect of 3D printed polymer honeycomb
title_fullStr Shape change effect of 3D printed polymer honeycomb
title_full_unstemmed Shape change effect of 3D printed polymer honeycomb
title_short Shape change effect of 3D printed polymer honeycomb
title_sort shape change effect of 3d printed polymer honeycomb
topic DRNTU::Engineering::Mechanical engineering::Prototyping
url http://hdl.handle.net/10356/61947
work_keys_str_mv AT luyang shapechangeeffectof3dprintedpolymerhoneycomb