Analysis of residual stresses in blow molded polyethylene terephthalate bottles using creep model / W.-F. Hao in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 5 (11/2015)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXX, N° 5 (11/2015) . - p. 534-541 Titre : Analysis of residual stresses in blow molded polyethylene terephthalate bottles using creep model Type de document : texte imprimé Auteurs : W.-F. Hao, Auteur ; X.-W. Chen, Auteur ; Y.-N. Yuan, Auteur ; Y.-J. Ma, Auteur Année de publication : 2015 Article en page(s) : p. 534-541 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse numérique Bouteilles en matières plastiques Contraintes (mécanique) Contraintes résiduelles Eléments finis, Méthode des Fluage Matières plastiques -- Moulage par soufflage Polyéthylène téréphtalate Index. décimale : 668.4 Plastiques, vinyles Résumé : In this paper, the residual stress in polyethylene terephthalate (PET) bottles, which was processed using blow-molding, was analyzed theoretically and numerically. First, the process of blow-molding was analyzed theoretically, which had considered both blowing process and curing of the polymer. The creep model was used to describe the relation between the deformation and the pressure in the blowing process, and thermo-chemical model was used to describe the curing process of the PET bottle. Then, a simulation was carried out using ABAQUS based on the creep model and thermo-chemical curing model. The deformation, residual stresses, heat flux vector and strain of the PET bottle during the blow-molding process were obtained. Finally, the effect of loading path on the residual stress was analyzed numerically, which shows that the longer the pressure was applied, the larger the residual stress. Note de contenu : - THEORETICAL ANALYSES : Blow molting process -PET curing process - FEM MODEL : Thermal modeling - Process conditions - RESULTS AND DISCUSSION : Deformation - Residual stress distribution - Temperature history - Strain distribution DOI : 10.3139/217.3036 En ligne : https://drive.google.com/file/d/1s0CTpHzfA8HwN2d1aFADtKHGk6rBjbhm/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24814 [article]

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