Modelling and simulation of injection molding

Dupret, François; Couniot, A.; Mal, Olivier; Vanderschuren, Luc; Verhoyen, Olivier

doi:10.1016/s0169-3107(99)80012-4

Cited by 12 publications

(4 citation statements)

References 133 publications

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“…The intake should be placed regarding that the mould is filled evenly (uniform filling) and in the shortest possible time. Further, it is possible to determine where the cold zones (connections) will occur and where the venting slots should be installed [23,24]. The analysis revealed that the intake position was chosen correctly and the total filling time is about 0.75 seconds.…”

Section: Filling Timementioning

confidence: 99%

The mould for production of plastic spout cap with internal thread by injection moulding

et al. 2018

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The main aim of this article is the mould design for production of plastic spout cap with inner thread by injection moulding technology. There are described the basic steps of whole design process with respect to fulfil all technology and functionality requirements. The application of hot runner system as well as hybrid ejection system based on rotary cores and stripper plate can be considered as the main innovative features of the designed mould. The mould flow analysis was carried out for the functionality demonstration.

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Section: Filling Timementioning

confidence: 99%

The mould for production of plastic spout cap with internal thread by injection moulding

et al. 2018

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“…The first class includes models based on the concept of an 'anisotropic viscous medium'. The presence of fibres and their local orientation are taken into account only in the constitutive equations of the continuous medium by introducing orientation tensors [87][88][89]. The second class comprises the so-called micropolar theories, which supplement the model of a continuous medium with rotational degrees of freedom for describing the spinning motion of suspended particles [86,90].…”

Section: Short-fibre-reinforced Compositesmentioning

confidence: 99%

Mechanics of advanced materials for lightweight structures

Altenbach

2011

Proceedings of the Institution of Mechanical Engineers, Part C:

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In recent years, there have been a lot of new developments concerning the use of advanced materials for lightweight structures. Examples are long- and short-fibre-reinforced composites, sandwiches, foams, and, last but not least, nanostructures. The analysis of structures made of these materials can be performed on the basis of the Mechanics of Composites. However, stimulated by new applications, new manufacturing technologies, new material compositions, etc. a review of the Mechanics of Composites is necessary. In this article, some of the actual trends are discussed, for example developments in the application of long- and short-fibre-reinforced composites, laminates affected by multifield loadings, effective property-based analysis of foams, and the description of nanostructures within the concepts of Continuum Mechanics. The starting point of the review are the Engineering Mechanics basics on the level of the BSc program, that means the classical Strength of Materials. Extensions of Materials Strength foundations (for example, inclusion of anisotropy) are often sufficient as first improved estimates. If it is necessary, elements of Continuum Mechanics, of Material Testing or Numerical Solution Techniques can be implied. The every year increasing number of publications in the field of advanced materials for lightweight structures does not allow to give a complete overview over the state of the art. Recognizing this fact, the author will give a report only of directions related to his own research group and/or in the surrounding of his team.

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“…Finally, we wish to mention that most of the numerical modeling studies in injection molding are based on the lubrication approximation to formulate the mold filling problems (see, e.g., Williams and Lord 1975;Hieber and Shen 1980;Dupret and Vanderschuren 1988;Chiang et al 1991;Dupret et al 1999), although a number of recent papers use a fully three-dimensional approach (see, e.g., Pichelin and Coupez 1999;Ilinca and He´tu 2001;Michaeli et al 2001) to address specific problems that need to solve the full Navier-Stokes equations. Nevertheless, all published theoretical studies and simulations are far from predicting flow-front finger-like instabilities described in this study due to the lack of physics in the models used.…”

Section: Remarksmentioning

confidence: 99%