Design and mechanical properties analysis of multi hybrid orthotic insole based on FG-TPMS structures

Design and mechanical properties analysis of multi hybrid orthotic insole based on FG-TPMS structures | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Design and mechanical properties analysis of multi hybrid orthotic insole based on FG-TPMS structures Xuejin Zhao, Zhenzong Li, Xiaoyu Zhao, Feihong Xu, Chengxin Zhao This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7269935/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract To investigate the benefits of functionally graded triply periodic minimal surface (FG-TPMS) structures in redistributing plantar pressure and improving foot biomechanics in orthotic insoles, this study conducts quasi-static compression tests and finite element simulations on five FG-TPMS structures with graded density in the Z-axis direction: Gyroid, Diamond, Primitive, I-WP, and S. It compares the stiffness, strength, and energy absorption characteristics of these different FG-TPMS structures. By integrating 3D foot scanning and pressure mapping data, we introduce a novel computer-aided design (CAD) approach for creating hybrid rigid-soft full-contact orthotic insoles based on FG-TPMS structures. All models are fabricated using EPU-70 resin through masked stereolithography (MSLA) printing technology. The results indicate that multi hybrid FG-TPMS structures can significantly reduce peak pressure on the plantar surface, providing improved load distribution and comfort compared to traditional homogeneous structures. This study underscores the potential of FG-TPMS structures to drive innovation in biomedical applications, offering highly customized solutions for individual users. Orthotic insole Masked stereolithography FG-TPMS structures Computer-aided design Optimization Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementalmaterials.docx Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7269935","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":523972065,"identity":"fb0c33a2-1a80-49aa-b453-b2b05d574693","order_by":0,"name":"Xuejin 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