Processing

Please wait...

Settings

Settings

Goto Application

1. WO2021204893 - METHOD FOR SIMULATING FIBRE ORIENTATION IN AN INJECTION-MOULDED COMPONENT MADE OF A FIBRE-REINFORCED PLASTICS MATERIAL, AND DESIGN METHOD FOR DESIGNING AN INJECTION-MOULDED COMPONENT MADE OF A FIBRE-REINFORCED PLASTICS MATERIAL

Publication Number WO/2021/204893
Publication Date 14.10.2021
International Application No. PCT/EP2021/059092
International Filing Date 07.04.2021
IPC
B29C 45/76 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
76Measuring, controlling or regulating
B29C 45/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
CPC
B29C 2945/76949
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2945Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
76Measuring, controlling or regulating
76929Controlling method
76939Using stored or historical data sets
76949using a learning system, i.e. the system accumulates experience from previous occurrences, e.g. adaptive control
B29C 2945/76979
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2945Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
76Measuring, controlling or regulating
76929Controlling method
76979Using a neural network
B29C 45/0005
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
0005using fibre reinforcements
B29C 45/76
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
76Measuring, controlling or regulating
B29C 45/7693
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
76Measuring, controlling or regulating
7693using rheological models of the material in the mould, e.g. finite elements method
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • KECH, Armin
  • OSSWALD, Tim A.
  • CRUZ BERNAL, Camilo Andres
  • KUGLER, Susanne
  • DEY, Argha Protim
Priority Data
10 2020 204 586.009.04.2020DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR SIMULATION EINER FASERORIENTIERUNG IN EINEM SPRITZGUSSBAUTEIL AUS EINEM FASERVERSTÄRKTEN KUNSTSTOFF UND AUSLEGUNGSVERFAHREN ZUM AUSLEGEN EINES SPRITZGUSSBAUTEILS AUS EINEM FASERVERSTÄRKTEN KUNSTSTOFF
(EN) METHOD FOR SIMULATING FIBRE ORIENTATION IN AN INJECTION-MOULDED COMPONENT MADE OF A FIBRE-REINFORCED PLASTICS MATERIAL, AND DESIGN METHOD FOR DESIGNING AN INJECTION-MOULDED COMPONENT MADE OF A FIBRE-REINFORCED PLASTICS MATERIAL
(FR) PROCÉDÉ DE SIMULATION D’ORIENTATION DE FIBRE DANS UN COMPOSANT MOULÉ PAR INJECTION CONSTITUÉ D’UNE MATIÈRE PLASTIQUE RENFORCÉE DE FIBRES, ET PROCÉDÉ DE CONCEPTION PERMETTANT LA CONCEPTION D’UN COMPOSANT MOULÉ PAR INJECTION CONSTITUÉ À PARTIR D’UNE MATIÈRE PLASTIQUE RENFORCÉE DE FIBRES
Abstract
(DE) Ein Verfahren (100) zur Simulation einer Faserorientierung in einem Spritzgussbauteil aus einem faserverstärkten Kunststoff, wobei mit einer makroskopischen Simulation des Spritzgießens eine nach dem Spritzgießen vorliegende Orientierung der Fasern in dem herzustellenden Spritzgussbauteil bestimmt wird und wobei die makroskopische Simulation des Spritzgießens unter Verwendung makroskopischer physikalischer Parameter des faserverstärkten Kunststoffs erfolgt. Ferner ist vorgesehen, dass bei der makroskopischen Simulation eine zeitliche Entwicklung des Faserorientierungstensors Ä über eine Kombination aus zwei makroskopischen Modellen bestimmt wird, wobei eine erste zeitliche Entwicklung des Faserorientierungstensors Äs über ein erstes makroskopisches Modell (111) auf Grundlage von Scherflüssen bestimmt wird und eine zweite zeitliche Entwicklung des Faserorientierungstensors Äe über ein zweites makroskopisches Modell (112) auf Grundlage von Elongationsflüssen bestimmt wird. Das Verfahren wird in einem Auslegungsverfahren zum Auslegen eines Spritzgussbauteils aus einem faserverstärkten Kunststoff verwendet.
(EN) The invention relates to a method (100) for simulating fibre orientation in an injection-moulded component made of a fibre-reinforced plastics material, wherein, by means of a macroscopic simulation of the injection moulding process, an orientation of the fibres, which results following injection moulding, in the injection-moulded component to be produced is determined, and wherein the macroscopic simulation of the injection moulding process takes place using macroscopic physical parameters of the fibre-reinforced plastics material. In addition, according to the invention, in the macroscopic simulation, progression of the fibre-orientation tensor Ä over time is determined by combining two macroscopic models, wherein a first progression of the fibre-orientation tensor Äs over time is determined by a first macroscopic model (111) on the basis of shear flows and a second progression of the fibre-orientation tensor Äe over time is determined by a second macroscopic model (112) on the basis of elongation flows. The method is used in a design method for designing an injection-moulded component made of a fibre-reinforced plastics material.
(FR) L’invention se rapporte à un procédé (100) de simulation de l’orientation de fibre dans un composant moulé par injection constitué d’une matière plastique renforcée de fibres. À l’aide d’une simulation macroscopique du procédé de moulage par injection, une orientation des fibres, qui résulte suite au moulage par injection, dans le composant moulé par injection à produire est déterminée, et la simulation macroscopique du procédé de moulage par injection a lieu en utilisant les paramètres physiques macroscopiques de la matière plastique renforcée de fibres. De plus, selon l’invention, dans la simulation macroscopique, la progression du tenseur d’orientation de fibre Ä dans le temps est déterminée par combinaison de deux modèles macroscopiques, une première progression du tenseur d’orientation de fibre Äs dans le temps étant déterminée par un premier modèle macroscopique (111) sur la base des flux de cisaillement et d’une seconde progression du tenseur d’orientation de fibre Äe dans le temps étant déterminée par un second modèle macroscopique (112) sur la base des flux d’allongement. Le procédé est utilisé dans un procédé de conception pour permettre la conception d’un composant moulé par injection constitué d’une matière plastique renforcée de fibres.
Related patent documents
Latest bibliographic data on file with the International Bureau