108427 20240319080948.0 doi 10.1080/15376494.2021.1949509 sideral 124912 ART-2022-124912 eng Miralbes, Ramon Universidad de Zaragoza (orcid)0000-0002-9702-9314 Comparative analysis of mechanical properties and energy absorption capabilities of functionally graded and non-graded thermoplastic sheet gyroid structures 2022 Access copy available to the general public Unrestricted Additive manufacturing allows the tailoring of the structure of energy-absorbing materials. It is thus feasible now to use light, printed structures instead of other materials such as foams and honeycombs, signifying greater possibilities for customization. Some of these structures are triply periodic minimal-surface structures that is a family of different structures like the gyroid one. Another benefit of additively manufactured graded structures, which foams or honeycombs lack, is the flexibility to vary the internal parameters along one or more directions. This study focuses on the comparative analysis of graded and non-graded gyroid structures for four common thermoplastic materials used in additive manufacturing. These structures are compared with each other under quasi-static compression testing, as well as with expanded polystyrene foam and solid samples of the thermoplastic materials. The analysis includes investigation of the stress–strain and specific stress–strain curves, capability of absorbing energy per unit weight and per unit volume, ideality, total efficiency, and normalized energy vs. normalized stress characteristics. We also analyze the internal fracture mechanism of the structures. The objective is to obtain more extensive knowledge of the behavior of non-graded structures. info:eu-repo/grantAgreement/ES/UZ/UZCUD2019-TEC-04 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 2.8 2022 MATERIALS SCIENCE, CHARACTERIZATION & TESTING 10 / 32 = 0.312 2022 Q2 T1 MECHANICS 52 / 137 = 0.38 2022 Q2 T2 MATERIALS SCIENCE, MULTIDISCIPLINARY 201 / 343 = 0.586 2022 Q3 T2 MATERIALS SCIENCE, COMPOSITES 17 / 28 = 0.607 2022 Q3 T2 0.669 2022 Civil and Structural Engineering 2022 Q2 Materials Science (miscellaneous) 2022 Q2 Mechanics of Materials 2022 Q2 Mechanical Engineering 2022 Q2 Mathematics (miscellaneous) 2022 Q2 5.1 2022 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Higuera, Saul Ranz, David Universidad de Zaragoza (orcid)0000-0001-8451-660X Gomez, Jose Antonio Universidad de Zaragoza (orcid)0000-0002-1548-3944 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 5002 X Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Técnica. Lab. y Talleres 29, 26 (2022), 5142-5155 Mech. adv. mat. struct. MECHANICS OF ADVANCED MATERIALS AND STRUCTURES 1537-6532 1585814 http://zaguan.unizar.es/record/108427/files/texto_completo.pdf Postprint 1077575 http://zaguan.unizar.es/record/108427/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:108427 articulos driver 2024-03-18-12:46:37 ARTICLE