Objective
Software was developed to simulate the injection moulding of complex thin parts of thermoplastic polymers. A specific element of the development was to exploit the flexibility and accuracy of the finite element method. Using this method, a well behaved mesh covering the whole midsurface was defined.
It was also essential to accurately calculate thermal evolution during the filling and packing stages, since the polymer is conditioned by the temperature field prevailing at the end of these stages.
The results gained by numerical simulation were analysed against experimental data achieved using a special optical fibre apparatus. The 2 sets of results showed high correlation. The characteristics of the material were shown to follow Cross's law.
WHILE THE DESIGN OF OUR PARTS IS BASED ON EXPERIENCE AS FAR AS THEIR FUNCTIONAL ASPECT IS CONNECTED, THE COMPLEX PHYSICAL BEHAVIOUR OF POLYMERS DURING THEIR TRANSFORMATION MAKES IT DIFFICULT TO PREDICT MOULDABILITY AND TO REGULATE THE PROCESS ON THE SOLE BASIS OF EXPERIENCE.
THIS DIFFICULTY OF PREDICTING PROCESSING CONDITIONS REQUIRES AN ITERATIVE, LONG AND COSTLY TUNING OF MOULDING TOOLS, UNLESS MATHEMATIC PREDICTIVE TECHNIQUES ARE MADE AVAILABLE.
THE GOAL OF THE PRESENT PROJECT IS TO BUILD A SOFTWARE WHICH ACCURATELY MODELS THE FLOW OF POLYMERS IN COMPLEX GEOMETRIES WHICH ARE PROPER TO INDUSTRIAL ELECTROMECHANICAL PARTS.
SUCH A SOFTWARE IS AN INESCAPABLE TOOL WITH A VIEW TO A COMPLETE STUDY OF THE MOULDING PROCESS.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences computer and information sciences software
- social sciences sociology industrial relations automation
- natural sciences chemical sciences polymer sciences
- natural sciences mathematics pure mathematics geometry
- natural sciences physical sciences optics fibre optics
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Programme(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
92002 Nanterre
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.