Comparative analysis of mechanical properties and energy absorption capabilities of functionally graded and non-graded thermoplastic sheet gyroid structures

Miralbes, Ramon (Universidad de Zaragoza) ; Higuera, Saul ; Ranz, David (Universidad de Zaragoza) ; Gomez, Jose Antonio (Universidad de Zaragoza)

Resumen: 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.

Idioma: Inglés

DOI: 10.1080/15376494.2021.1949509

Año: 2022

Publicado en: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES 29, 26 (2022), 5142-5155
ISSN: 1537-6532

Factor impacto JCR: 2.8 (2022)

Categ. JCR: MATERIALS SCIENCE, CHARACTERIZATION & TESTING rank: 10 / 32 = 0.312 (2022) - Q2 - T1
Categ. JCR: MECHANICS rank: 52 / 137 = 0.38 (2022) - Q2 - T2
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 201 / 343 = 0.586 (2022) - Q3 - T2
Categ. JCR: MATERIALS SCIENCE, COMPOSITES rank: 17 / 28 = 0.607 (2022) - Q3 - T2

Factor impacto CITESCORE: 5.1 - Engineering (Q2) - Mathematics (Q1) - Materials Science (Q2)

Factor impacto SCIMAGO: 0.669 - Civil and Structural Engineering (Q2) - Materials Science (miscellaneous) (Q2) - Mechanics of Materials (Q2) - Mechanical Engineering (Q2) - Mathematics (miscellaneous) (Q2)

Financiación: info:eu-repo/grantAgreement/ES/UZ/UZCUD2019-TEC-04

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Expresión Gráfica en Ing. (Dpto. Ingeniería Diseño Fabri.)
Área (Departamento): Área Técnica. Lab. y Talleres (Dpto. Ingeniería Diseño Fabri.)