FINITE ELEMENT ANALYSIS OF PLASTIC RECYCLING MACHINE DESIGNED FOR PRODUCTION OF THIN FILAMENT COIL
DOI:
https://doi.org/10.4314/njt.362.1289Keywords:
Plastics, Machine, Design, Recycling, Sustainability, Finite Element, SimulationAbstract
This paper presents the conceptual design of plastic recycling machine for production of thin filament coil. The machine is meant to serve as a sustainable means of converting waste Polyethylene Terephthalate (PET) plastic materials into thin filaments to be used as feedstock material in Fused Deposition Modeling (FDM) machine. The machine design consists of a shredder hopper, two shredder shafts with knife-edge ring cutters, extruder hopper, extrusion barrel with heater jackets and extrusion auger shaft. The design analysis of each of the machine elements was done and structural integrity of the machine design was evaluated using finite element analysis (FEA) tool in Solid Works Computer Aided Design (CAD) application. The FEA result indicated that a maximum stress of 33 MPa was reached in one of the machine frame members when loads mounted on top and below the frame structure are 1204 N and 271 N respectively. The maximum resultant displacement in the member frame was 0.34 mm and the minimum factor of safety obtained was 8.3. Also, a minimum factor of safety value of 5.3 was obtained for shredder shaft between when subjected to a torque of 1000 Nm and it experienced an angle of twist of 0.42o and a maximum stress of 46.8 MPa. The implication of the result is that the design of the machine is adequate and the machine will fulfill its intended purpose upon fabrication, as the yield strengths of selected materials for the fabrication of the machine members are not exceeded.
Downloads
Published
Issue
Section
License
The contents of the articles are the sole opinion of the author(s) and not of NIJOTECH.
NIJOTECH allows open access for distribution of the published articles in any media so long as whole (not part) of articles are distributed.
A copyright and statement of originality documents will need to be filled out clearly and signed prior to publication of an accepted article. The Copyright form can be downloaded from http://nijotech.com/downloads/COPYRIGHT%20FORM.pdf while the Statement of Originality is in http://nijotech.com/downloads/Statement%20of%20Originality.pdf
For articles that were developed from funded research, a clear acknowledgement of such support should be mentioned in the article with relevant references. Authors are expected to provide complete information on the sponsorship and intellectual property rights of the article together with all exceptions.
It is forbidden to publish the same research report in more than one journal.