An integrative simulation approach to weight reduction in poly(ethylene terephthalate) bottles

Daver, Fügen; Demirel, Bilal; Sutanto, J.; Pang, Chaowei

doi:10.1002/app.36780

Cited by 6 publications

(8 citation statements)

References 9 publications

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“…The resultant simulation files were then transferred into the ANSYS software to analyze the burst pressure and top‐load resistance of the bottles. For the structural analysis of the bottles, instead of using a constant value to define the material properties, microstructure‐dependant mechanical performance models were used to calculate typical mechanical properties including Young's Modulus, yield stress as shown in our recent publication 13…”

Section: Simulation Studymentioning

confidence: 99%

“…For the structural analysis of the bottles, instead of using a constant value to define the material properties, microstructure-dependant mechanical performance models were used to calculate typical mechanical properties including Young's Modulus, yield stress as shown in our recent publication. 13 In the top-load analysis, the constraints were applied at the base section of the bottle. Loads varying from 200 to 400 N were then applied to the top section of the bottle.…”

Section: The Blowview and Ansys Simulation Packagesmentioning

confidence: 99%

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Effects of preform deformation behavior on the properties of the poly(ethylene terephthalate) bottles

Demirel

Daver

2012

J of Applied Polymer Sci

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Plastics bottles made out of poly(ethylene terephthalate) (PET) are usually produced by injection stretch blow molding. Optimization of the process parameters is necessary to achieve bottles with adequate top load and burst strength. However, doing so experimentally is time‐consuming and costly. To overcome this difficulty, simulation packages based on finite element analysis methods have been developed. In this study, process optimization of a 350‐mL PET fruit juice bottle was carried out by means of BlowView and ANSYS simulation packages. BlowView was used for the ISBM process simulation and ANSYS for structural analysis of the bottles. The bottles were produced under different process conditions where the timing of the stretch rod movement was varied in relation to the activation of the blow pressure. The simulation results obtained through the both simulation packages were compared with experimental results. It was found that bottles of highest quality were produced if the sequencing of axial stretching and radial inflation results in simultaneous biaxial deformation of the preform. Truly biaxial orientation of PET molecules improved both top‐load and burst resistances of the bottles. The structural simulation studies performed by the ANYSYS simulation package validated most of our experimental findings. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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Section: Simulation Studymentioning

confidence: 99%

Section: The Blowview and Ansys Simulation Packagesmentioning

confidence: 99%

Effects of preform deformation behavior on the properties of the poly(ethylene terephthalate) bottles

Demirel

Daver

2012

J of Applied Polymer Sci

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“…These simulations are complex, especially due to the material characterization and the accuracy of the simulation model which is needed to obtain results that can be used to make appropriate design decisions. FEM analysis has also been widely used for weight reduction in other injection molded parts 4 .Other researchers have used CAE tools to improve PC injected parts 5 . 4 In addition to FEM analysis, over the last few years ecological criteria are being strongly taken into account in the design process.…”

Section: Introductionmentioning

confidence: 99%

“…FEM analysis has also been widely used for weight reduction in other injection molded parts 4 .Other researchers have used CAE tools to improve PC injected parts 5 . 4 In addition to FEM analysis, over the last few years ecological criteria are being strongly taken into account in the design process. When performing an environmental impact assessment of a product, several factors related to the materials, the production processes and transportation must be taken into account.…”

Section: Introductionmentioning

confidence: 99%

A systematic material selection process applied to a luminaire diffuser

Javierre

Elduque

Camañes

et al. 2016

Lighting Research & Technology

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This paper presents a systematic material selection process for technical, environmental and economic criteria. This methodology has been applied to the design of a weatherproof luminaire. The materials selected for the production of this diffuser were characterized to obtain their mechanical properties and to perform exhaustive research on impact analysis by means of finite element modelling. Also an economic analysis and an ecological impact assessment have been performed. Thanks to this working methodology, a final design of the diffuser has been developed having the optimum thickness to achieve the mechanical specifications and minimize the environmental impact and the cost of the diffuser.

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“…However, they did not optimize the process parameters of the heating system. The authors [17] also studied the effect of ISBM process parameters and preform design on the bottle properties; the process parameters comprising the blow pressure, the timing of the blow pressure activation relative to the stretch rod motion was studied to improve the simulation predictions of bottle wall thickness [18, 19].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of preform reheat temperature in two‐stage injection stretch blow molding

Demirel

Daver

2012

Polymer Engineering & Sci

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Plastic bottles used for carbonated soft drink (CSD) packages are most commonly made from poly(ethylene terephthalate) (PET) by injection stretch blow molding (ISBM). The required bottle performance criteria vary with its application but typically include top‐load strength, burst strength, optical clarity, thermal stability, and barrier properties. An experimental study of the preform reheat temperature was carried out for a 1.5‐l PET bottle produced by a two‐stage ISBM machine. The overall temperature of the preform was changed by controlling the reheat temperature of the preform; all the other process variables and preform dimensions were kept constant. Performance of the PET bottles for differing preform reheat temperatures was measured experimentally in terms of top‐load strength, burst pressure resistance, environmental stress cracking resistance (ESCR), and thermal stability. It was observed that the ESCR values and the burst strength decreased with the increasing reheat temperature, whereas the top‐load strength increased. Thermal stability tests confirmed that high‐preform reheat temperatures had a detrimental effect on the self‐standing feature of the bottles. Decreasing the reheat temperature as low as possible, while maintaining a certain preform temperature profile, ensured high ESCR and burst strength values and prevented the concaveness at the bottom of the bottle. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers

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An integrative simulation approach to weight reduction in poly(ethylene terephthalate) bottles

Cited by 6 publications

References 9 publications

Effects of preform deformation behavior on the properties of the poly(ethylene terephthalate) bottles

Effects of preform deformation behavior on the properties of the poly(ethylene terephthalate) bottles

A systematic material selection process applied to a luminaire diffuser

Experimental study of preform reheat temperature in two‐stage injection stretch blow molding

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