Experimental characterisation and modelling of polyethylene terephthalate preform for injection stretch blow moulding

Battini, Davide; Avanzini, Andrea; Antonini, Mattia; Fausti, D.; Mor, Marat; Vertuan, A.; Chiesa, Franco; Grazioli, Massimo; Donzella, Giorgio

doi:10.1504/ijmpt.2020.108493

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…This certainly indicates a residual elasticity in the material. This observation is consistent with some results of the literature, for example, Battini et al 25 The first observation from Figure 4 concerns the maximum value of F x reached for the three tests: at identical temperature, elongation (which is equivalent at identical time) and strain rate. Higher the biaxial ratio (λ x times λ y ), higher the force F x .…”

Section: Neb Elongation Testssupporting

confidence: 92%

Identification of polymer behavior from nonequibiaxial elongation test with temperature and strain rate conditions close to blow molding process

Luo,

Chevalier,

Nguyen

et al. 2023

Polymer Engineering & Sci

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An anisotropic visco‐hyperelastic (VHE) model for polyethylene terephthalate (PET) is used to simulate the stretch blow molding process. The biaxiality needs to be taken into account for an accurate identification of the model parameters related to the induced anisotropy. Thanks to the use of a biaxial elongation apparatus developed at MSME, nonequibiaxial tension tests on PET have been managed on optimized specimen in order to provide data complementary to the equibiaxial (EB) tension test. This last enables the correct identification of the temperature and strain rate influence, because both viscous and elastic parts of the model need to test the material in nonequibiaxial (NEB) conditions. The procedure already used for EB tension test is extended to constant width and an intermediate case, NEB cases. The VHE model developed to simulate the PET behavior in the stretch blow molding conditions is identified from these three different biaxial tests: differences and dispersions are discussed. The origin of this dispersion is found out and solved by a modification of the model. This leads to a reduction of the number of parameters in the proposed VHE model.

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Section: Neb Elongation Testssupporting

confidence: 92%

Identification of polymer behavior from nonequibiaxial elongation test with temperature and strain rate conditions close to blow molding process

Luo,

Chevalier,

Nguyen

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…These one-step blow molding designs reduce the production cost, simplify the production steps, and are more convenient and environmentally friendly. However, compared with the hemispherical base, it is easier to crack, which is caused by the mechanical properties given by the microscopic crystallinity and molecular orientation [28][29][30][31][32][33], and the more obvious stress concentration in the macroscopic view [34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Advances in Polyethylene Terephthalate Beverage Bottle Optimization: A Mini Review

et al. 2022

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Compared with other materials, polyethylene terephthalate (PET) has high transparency, excellent physical and mechanical properties in a wide temperature range and good hygiene and safety, so it is widely used in the packaging industry, especially in the packaging of beverages and foods. The optimization of PET bottles is mainly reflected in three aspects: material optimization, structure optimization and process optimization, among which there is much research on material optimization and process optimization, but there is no complete overview on structure optimization. A summary of structural optimization is necessary. Aiming at structural optimization, the finite element method is a useful supplement to the beverage packaging industry. By combining the computer-aided design technology and using finite element software for finite element simulation, researchers can replace the experimental test in the pre-research design stage, predict the effect and save cost. This review summarizes the development of PET bottles for beverage packaging, summarizes various optimization methods for preventing stress cracking in beverage packaging, and especially focuses on comparing and evaluating the effects of several optimization methods for packaging structure. Finally, the future development of all kinds of optimization based on structural optimization in the field of beverage packaging is comprehensively discussed, including personalized design, the combination of various methods and the introduction of actual impact factor calculation.

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Multi-response Optimization of Process Parameters in Stretch Blow Molding of PET Plastic Bottles

Merga,

Sinha,

Getachew

et al. 2024

J. Inst. Eng. India Ser. D

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Experimental characterisation and modelling of polyethylene terephthalate preform for injection stretch blow moulding

Cited by 3 publications

References 32 publications

Identification of polymer behavior from nonequibiaxial elongation test with temperature and strain rate conditions close to blow molding process

Identification of polymer behavior from nonequibiaxial elongation test with temperature and strain rate conditions close to blow molding process

Advances in Polyethylene Terephthalate Beverage Bottle Optimization: A Mini Review

Multi-response Optimization of Process Parameters in Stretch Blow Molding of PET Plastic Bottles

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