Active disassembly of obsolete handphones using shape memory materials
This research describes a general introduction to Active Disassembly using Smart Material (ADSM) such as shape memory material (alloy or polymer), the advantages and possible use in achieving active disassembly. The essence of shape memory effect and how will it be implemented to Polymethylmethacryl...
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sg-ntu-dr.10356-459382023-03-04T19:13:00Z Active disassembly of obsolete handphones using shape memory materials Xu, Wei Wei. Huang Weimin School of Mechanical and Aerospace Engineering DRNTU::Engineering::Manufacturing::Product design This research describes a general introduction to Active Disassembly using Smart Material (ADSM) such as shape memory material (alloy or polymer), the advantages and possible use in achieving active disassembly. The essence of shape memory effect and how will it be implemented to Polymethylmethacrylate (PMMA) thermoplastic polymer are explained. By obtaining the training temperature after Differential Scanning Calorimeter (DSC) test, the compression experimental data are demonstrated and analyzed to understand the optimum shape recovery rate, as well as the characterization of PMMA under different heating and loading conditions. Moreover, the cyclic loading and unloading stress-strain relationships that obtain from the experiment determine the shape fixity, Young’s modulus and compressive stress behaviour. A number of active fastener designs by using PMMA board are accomplished for the demonstration of shape memory effect. Next, an active PMMA screw is fabricated to verify the shape memory behaviour by designing of aluminum training rig, followed by fabricating a snap-fit model. Through the varied methods to achieve active disassembly, a separable PMMA box assembly design is carried out to consolidate the concept of Active Disassembly upon different recovery temperatures. Bachelor of Engineering (Mechanical Engineering) 2011-06-24T08:05:18Z 2011-06-24T08:05:18Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45938 en Nanyang Technological University 78 p. application/pdf |
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DRNTU::Engineering::Manufacturing::Product design Xu, Wei Wei. Active disassembly of obsolete handphones using shape memory materials |
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This research describes a general introduction to Active Disassembly using Smart Material (ADSM) such as shape memory material (alloy or polymer), the advantages and possible use in achieving active disassembly. The essence of shape memory effect and how will it be implemented to Polymethylmethacrylate (PMMA) thermoplastic polymer are explained. By obtaining the training temperature after Differential Scanning Calorimeter (DSC) test, the compression experimental data are demonstrated and analyzed to understand the optimum shape recovery rate, as well as the characterization of PMMA under different heating and loading conditions. Moreover, the cyclic loading and unloading stress-strain relationships that obtain from the experiment determine the shape fixity, Young’s modulus and compressive stress behaviour. A number of active fastener designs by using PMMA board are accomplished for the demonstration of shape memory effect. Next, an active PMMA screw is fabricated to verify the shape memory behaviour by designing of aluminum training rig, followed by fabricating a snap-fit model. Through the varied methods to achieve active disassembly, a separable PMMA box assembly design is carried out to consolidate the concept of Active Disassembly upon different recovery temperatures. |
author2 |
Huang Weimin |
author_facet |
Huang Weimin Xu, Wei Wei. |
format |
Final Year Project |
author |
Xu, Wei Wei. |
author_sort |
Xu, Wei Wei. |
title |
Active disassembly of obsolete handphones using shape memory materials |
title_short |
Active disassembly of obsolete handphones using shape memory materials |
title_full |
Active disassembly of obsolete handphones using shape memory materials |
title_fullStr |
Active disassembly of obsolete handphones using shape memory materials |
title_full_unstemmed |
Active disassembly of obsolete handphones using shape memory materials |
title_sort |
active disassembly of obsolete handphones using shape memory materials |
publishDate |
2011 |
url |
http://hdl.handle.net/10356/45938 |
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1759856069121671168 |