{"id":4818,"date":"2024-03-13T12:21:10","date_gmt":"2024-03-13T17:21:10","guid":{"rendered":"https:\/\/cqfa.quebec\/?p=4818"},"modified":"2024-03-13T12:25:22","modified_gmt":"2024-03-13T17:25:22","slug":"modeling-of-effect-of-infill-density-percentage-on-rotating-bending-fatigue-behavior-of-additive-manufacturing-pla-polymers","status":"publish","type":"post","link":"https:\/\/cqfa.quebec\/en\/modeling-of-effect-of-infill-density-percentage-on-rotating-bending-fatigue-behavior-of-additive-manufacturing-pla-polymers\/","title":{"rendered":"Modeling of Effect of Infill Density Percentage on Rotating Bending Fatigue Behavior of Additive-Manufacturing PLA Polymers"},"content":{"rendered":"<p><em>Ftoutou, E.; Allegue, L.; Marouani, H.; Hassine, T.; Fouad, Y.; Mrad, H. (2024). Modeling of Effect of Infill Density Percentage on Rotating Bending Fatigue Behavior of Additive-Manufacturing PLA Polymers. Materials 2024, 17(2) 471.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>Nowadays, 3D PLA-printed parts are widely used in many applications, essentially using the fused filament fabrication technique. While the influence of printing parameters on quasi-static mechanical characterization has been extensively considered within the literature, there are limited accounts of this effect on fatigue performance. The two main aims of this research are first to investigate the effects of the infill density percentage on the fatigue life of dog-bone samples under rotating bending cycling loads, and second to model the fatigue life using W\u00f6hler and Basquin models. The experiments exhibit a high variability of results, especially for low cyclic loads. The S\u2013N curves show that the number of cycles at failure increases with the increase in the infill density percentage and decreases with the increase in loads. Investigations allow the formulation of each constant model as a function of the infill density percentage. The new fatigue model formulations exhibit good agreement with the experimental data. As an outcome of this study, the fatigue model for 3D-printed parts may be expressed as a function of the infill density percentage using fewer tests in the future and for other polymers used in fused filament fabrication.<\/p>\n<p>&nbsp;<\/p>\n<p class=\"link-btn-style btn-yellow\"><a href=\"https:\/\/www.mdpi.com\/1996-1944\/17\/2\/471\" target=\"_blank\" rel=\"noopener\">Read the publication<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ftoutou, E.; Allegue, L.; Marouani, H.; Hassine, T.; Fouad, Y.; Mrad, H. (2024). Modeling of Effect of Infill Density Percentage on Rotating Bending Fatigue Behavior of Additive-Manufacturing PLA Polymers. Materials [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-4818","post","type-post","status-publish","format-standard","hentry","category-publications-academiques-quebecoises"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Modeling of Effect of Infill Density Percentage on Rotating Bending Fatigue Behavior of Additive-Manufacturing PLA Polymers - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cqfa.quebec\/en\/modeling-of-effect-of-infill-density-percentage-on-rotating-bending-fatigue-behavior-of-additive-manufacturing-pla-polymers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modeling of Effect of Infill Density Percentage on Rotating Bending Fatigue Behavior of Additive-Manufacturing PLA Polymers - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"og:description\" content=\"Ftoutou, E.; Allegue, L.; Marouani, H.; Hassine, T.; Fouad, Y.; Mrad, H. (2024). Modeling of Effect of Infill Density Percentage on Rotating Bending Fatigue Behavior of Additive-Manufacturing PLA Polymers. 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