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Single material 4D printing by pre-strained Shape Memory Polymer : 사전변형이 인가된 형상기억수지를 이용한 단일재료 4D프린팅
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- Authors
- Advisor
- 조규진
- Major
- 공과대학 기계항공공학부
- Issue Date
- 2018-02
- Publisher
- 서울대학교 대학원
- Keywords
- 4D printing ; Shape memory polymer ; Pre-strain ; FDM 3D printer ; Programming matter
- Description
- 학위논문 (석사)-- 서울대학교 대학원 : 공과대학 기계항공공학부, 2018. 2. 조규진.
- Abstract
- 4D printing, a technology that makes 3D printed outputs move by themselves, is a 3D printing technology for smart materials. As 3D printing technology did before, 4D printing will also play a major role in achieving the ultimate goals of smart materials such as self-assembly, self-healing, and variable infrastructure by giving new degrees of freedom to existing material design methods. In this research, we have developed a new method to solve the one of the biggest challenges in 4D printing technology: applying pre-strain at the printing stage. This technique is a simple process of pulling out the shape memory polymer while printing it out. It solves the pre-strain-applying problem easily and cheaply. At the same time, it enables to manufacture the shapes that could not be created with previous 4D printing technology. Finally, we succeeded in controlling the degree of pre-strain by manipulating printing variables.
- Language
- English
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