{"id":9129,"date":"2025-09-22T15:02:22","date_gmt":"2025-09-22T13:02:22","guid":{"rendered":"https:\/\/ikv-aachen.de\/rp\/metamodel-based-methodology-for-process-design-for-discontinuous-long-fiber-reinforced-plastics\/"},"modified":"2025-09-22T15:22:07","modified_gmt":"2025-09-22T13:22:07","slug":"metamodel-based-methodology-for-process-design-for-discontinuous-long-fiber-reinforced-plastics","status":"publish","type":"cpt_ikv_rp","link":"https:\/\/ikv-aachen.de\/en\/rp\/metamodel-based-methodology-for-process-design-for-discontinuous-long-fiber-reinforced-plastics\/","title":{"rendered":"Metamodel-Based Methodology for Process Design for Discontinuous Long-Fiber-Reinforced Plastics"},"content":{"rendered":"<style type=\"text\/css\">\n    #single-header-block_fdc8e3a441080a810603931aaf98f861 .swiperThumbsNavi .swiper-slide {\n        opacity: 0.4;\n    }\n\n    #single-header-block_fdc8e3a441080a810603931aaf98f861 .swiperThumbsNavi .swiper-slide-thumb-active {\n        opacity: 1;\n    }\n<\/style>\n    <section id=\"single-header-block_fdc8e3a441080a810603931aaf98f861\" class=\"block-single-header theGridWrapper \">\n        <div class=\"theGrid12\">\n            <div class=\" col-start-2 col-span-10 md:col-start-3  md:col-span-8\">\n                <h2 class=\"font-serif font-semibold text-blue text-sm w-4\/5\">\n                                    <\/h2>\n                                    <div class=\"mt-base text-blue text-sm font border-l-8  border-blue pl-base my-12 leading-normal \">\n                        In the production of technical components made from long-fibre-reinforced plastics, compression moulding is used. In this process, a quasi-isotropic, fibre-reinforced preform is pressed into the target geometry under pressure. The resulting material flow causes fibre reorientation, which significantly influences the anisotropic mechanical properties of the part. To tailor these properties to the specific load case, the positioning and geometry of the inserted preform must be selected such that the desired fibre orientation is achieved. While the process can be represented through numerical simulation, such computations are time-consuming and often impractical for iterative optimisation.                    <\/div>\n                                            <\/div>\n        <\/div>\n    <\/section>\n\n\n\n<p class=\"wp-block-paragraph\">This project explored the use of artificial neural networks (feedforward) as metamodels to provide reliable predictions based on limited simulation data. The focus lay on optimising model structure, selecting suitable input parameters, applying training strategies, and using synthetic data augmentation. A single-stage model \u2014 directly correlating insert position with deformation \u2014 was compared to a two-stage approach that additionally considered material flow fronts.<\/p>\n\n\n<figure class=\" relative flex flex-col gap-2xs mb-xs md:mb-l xl:mb-xl\"><img decoding=\"async\"  class=\" w-full  \"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2025\/09\/HO4776\uf02274-1.jpg\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2025\/09\/HO4776\uf02274-1-748x419.jpg 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2025\/09\/HO4776\uf02274-1-1536x860.jpg 1536w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2025\/09\/HO4776\uf02274-1-768x430.jpg 768w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" width=\"1536\" height=\"860\" alt=\"HO4776\uf02274-1\" loading=\"lazy\" \/><span class=\" text-copyright order-3 justify-end text-right w-full  w-full \">&copy; IKV<\/span><figcaption class=\" w-full  text-figcaption justify-end text-right \">Fig. 1: Factors determining the meta model<\/figcaption><\/figure>\n\n\n<p class=\"wp-block-paragraph\">The methodology developed makes it possible to create a metamodel based on the associated numerical simulation, independent of material and component geometry, and to use this for optimisation within the intervals of the training data set. Increasing the extrapolation capability is the subject of further research.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Project data and funding<\/summary>\n<p class=\"wp-block-paragraph\">We would like to thank the DFG for funding the project (funding reference HO 4776\/74-1) and the project partners for their cooperation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Project duration: 01.10.2022 &#8211; 31.03.2025<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Promotion:<\/p>\n\n\n<section id=\"logo-bar-block_9a579aea821673525b1c5aa4978ea48f\" class=\"block-logo-bar py-2xl  clear-both\">\n    <div class=\"theGridWrapper overflow-hidden  \">\n        <div class=\"grid grid-cols-[repeat(auto-fill,minmax(140px,1fr))] gap-base\">\n                            <figure class=\" relative h-full  \"><img decoding=\"async\" fetchpriority=\"low\"  class=\" object-contain w-full h-full mb-base  \"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Logo-DFG.png\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Logo-DFG-748x591.png 748w\" sizes=\"auto, (max-width: 748px) 100vw, 748px\" width=\"748\" height=\"591\" alt=\"Logo-DFG\" loading=\"lazy\" \/><\/figure>                                <\/div>\n    <\/div>\n<\/section>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>This project explored the use of artificial neural networks (feedforward) as metamodels to provide reliable predictions based on limited simulation data. The focus lay on optimising model structure, selecting suitable input parameters, applying training strategies, and using synthetic data augmentation. A single-stage model \u2014 directly correlating insert position with deformation \u2014 was compared to a [&hellip;]<\/p>\n","protected":false},"featured_media":9113,"parent":0,"template":"","tags":[845,1208,1196],"research_fields":[809,810,1174],"class_list":["post-9129","cpt_ikv_rp","type-cpt_ikv_rp","status-publish","has-post-thumbnail","hentry","tag-long-fiber-reinforced-thermoplastics","tag-metamodel","tag-modeling","research_fields-fiber-reinforced-plastics","research_fields-lightweight-technologies","research_fields-simulation-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Metamodel-Based Methodology for Process Design for Discontinuous Long-Fiber-Reinforced Plastics | IKV-Aachen<\/title>\n<meta name=\"description\" content=\"As migration barriers, plasma polymer coating systems can offer pioneering solutions for the processing and use of recyclates in plastic packaging, including for contact-sensitive applications. The RezyPlas project methodically combined material characterization, layer development and migration testing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ikv-aachen.de\/en\/rp\/metamodel-based-methodology-for-process-design-for-discontinuous-long-fiber-reinforced-plastics\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Metamodel-Based Methodology for Process Design for Discontinuous Long-Fiber-Reinforced Plastics | IKV-Aachen\" \/>\n<meta property=\"og:description\" content=\"As migration barriers, plasma polymer coating systems can offer pioneering solutions for the processing and use of recyclates in plastic packaging, including for contact-sensitive applications. 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