{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T14:27:54Z","timestamp":1785421674110,"version":"3.56.0"},"reference-count":41,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T00:00:00Z","timestamp":1779926400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52508294"],"award-info":[{"award-number":["52508294"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"award":["52508294"],"award-info":[{"award-number":["52508294"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Young S &amp; T Talent Support programme of Guangdong Provincial Association for Science and Technology","award":["SKXRC2025001"],"award-info":[{"award-number":["SKXRC2025001"]}]},{"DOI":"10.13039\/501100007162","name":"Guangdong Provincial Department of Science and Technology","doi-asserted-by":"publisher","award":["2025A1515010936"],"award-info":[{"award-number":["2025A1515010936"]}],"id":[{"id":"10.13039\/501100007162","id-type":"DOI","asserted-by":"publisher"}]},{"award":["2025A1515010936"],"award-info":[{"award-number":["2025A1515010936"]}],"id":[{"id":"https:\/\/ror.org\/00tjzgn92","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Start-up Project at Shenzhen University","award":["868-000001032148"],"award-info":[{"award-number":["868-000001032148"]}]},{"name":"Start-up Project for \u2018High-end and Shortage\u2019 Talents (Category C) in Shenzhen","award":["827-000945"],"award-info":[{"award-number":["827-000945"]}]},{"name":"Guangdong-Hong Kong Technology Cooperation Funding Scheme","award":["GHP\/375\/23GD & 2025A0505080020"],"award-info":[{"award-number":["GHP\/375\/23GD & 2025A0505080020"]}]},{"name":"LingChuang Research Project of China National Nuclear Corporation","award":["CNNC-LCKY-2025-077"],"award-info":[{"award-number":["CNNC-LCKY-2025-077"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The integration of multi-material 3D printing with origami engineering offers a promising avenue for deployable structures, but weak interfacial bonding between rigid and flexible phases remains a key limitation. This study first proposed four distinct hinge designs (enclosed, interlaced, inserted, and interlocked) for Miura-ori architectures, and subsequently investigated their mechanical behaviors with further elucidation of stress-transfer efficiency and interfacial failure modes under static tensile or compressive loading. Research outcomes identified the 5.0 mm interlaced hinge as the optimal interface design, improving stress distribution at the rigid\u2013flexible interface and suppressing premature debonding. Notably, the dominant failure mode shifted from interfacial separation to ductile fracture within a TPU elastomer. Further research proves that increasing the embedment depth of the interlaced hinge from 1.0 mm to 5.0 mm can significantly increase fracture elongation from 100.8% to 342.4% while maintaining a stable peak tensile strength of approximately 12.5 MPa. At the structural scale, dual-material printed Miura-ori architecture exhibits better mechanical performance than single-material printed spatial counterparts (5163 N vs. 4019 N in compressive capacity, 18.7 mm vs. 8.0 mm in fracture elongation). These findings provide valuable insights into high-performance deployable structure design based on multi-material additive manufacturing.<\/jats:p>","DOI":"10.3390\/ma19112293","type":"journal-article","created":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T15:57:18Z","timestamp":1780070238000},"page":"2293","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Mechanics and Failure Mechanisms of Rigid\u2013Flexible 3D-Printed FRP Miura-Ori Structures"],"prefix":"10.3390","volume":"19","author":[{"given":"Zhiyu","family":"Qiao","sequence":"first","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jitao","family":"Liu","sequence":"additional","affiliation":[{"name":"CSCEC Road and Bridge Group Co., Ltd., Shijiazhuang 050011, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minghao","family":"Fan","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-2306-9077","authenticated-orcid":false,"given":"Haifei","family":"Zhuang","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangyu","family":"Wang","sequence":"additional","affiliation":[{"name":"CSCEC Road and Bridge Group Co., Ltd., Shijiazhuang 050011, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaying","family":"Xu","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2234-6892","authenticated-orcid":false,"given":"Peng","family":"Wang","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0722-5862","authenticated-orcid":false,"given":"Shaofeng","family":"Qin","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"},{"name":"Department of Civil Engineering, The Hong Kong University of Science and Technology, Hong Kong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9427-8609","authenticated-orcid":false,"given":"Teng","family":"Wang","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment (Shenzhen), Shenzhen 518060, China"},{"name":"Department of Civil Engineering, The University of Hong Kong, Hong Kong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9533-6575","authenticated-orcid":false,"given":"Weiwen","family":"Li","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil and Transportation Engineering, Shenzhen University & China National Key Laboratory of Green and 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