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Comparison of Petaloid Bottom Design for Carbonated Soft Drink PET Bottle through Computer Simulation

  • Dong-Hae Choi (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology) ;
  • Kyeong Hoon Cho (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology) ;
  • Kyoung Woo Nam (Samyang Packaing Co.) ;
  • Woo Min Kim (Samyang Packaing Co.) ;
  • Baek Rim Yeon (Samyang Packaing Co.) ;
  • Min-Young Lyu (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
  • Received : 2022.12.11
  • Accepted : 2022.12.22
  • Published : 2022.12.31

Abstract

Research on reducing the thickness of polyethylene terephthalate (PET) bottles is necessary to reduce the amount of plastic used. However, as decreasing a PET bottle's thickness weakens it, a robust bottle design is required. Therefore, in this study, we numerically analyzed various bottom designs of a carbonated soft drink PET bottle with 245 and 500 ml capacities and complicated petaloid shapes. Deformation, equivalent stress, maximum principal stress, and its direction according to each design were analyzed to study the strength of the bottle. The results serve as a reference to design robust petaloid PET bottle bottoms with a reduced thickness for carbonated soft drinks.

Keywords

Acknowledgement

본 결과물은 환경부의 재원으로 한국환경산업기술원의 재활용 저해제품 순환이용성 개선 기술개발사업의 지원을 받아 연구되었습니다(202003080006).

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