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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Investigation of load direction on the compressive strength of additively manufactured triply periodic minimal surface scaffolds

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Author(s):
de Aquino, D. A. [1] ; Maskery, I. [2] ; Longhitano, G. A. [3, 4, 5] ; Jardini, A. L. [3, 4] ; del Conte, E. G. [1]
Total Authors: 5
Affiliation:
[1] Fed Univ ABC, Ave Estados 5001, BR-09210580 Santo Andre, SP - Brazil
[2] Univ Nottingham, Ctr Addit Mfg, Fac Engn, Nottingham NG8 1BB - England
[3] Natl Inst Biofabricat INCT BIOFABRIS, Campinas - Brazil
[4] Univ Estadual Campinas, Sch Chem Engn, Campinas - Brazil
[5] Ctr Informat Technol Renato Archer CTI, Campinas - Brazil
Total Affiliations: 5
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY; v. 109, n. 3-4 JUL 2020.
Web of Science Citations: 0
Abstract

Triply periodic minimal surfaces (TPMS) enable the construction of lightweight scaffolds, complex geometry heat exchangers, and energy absorbing materials. Additive manufacturing (AM) has the potential to build such TPMS structures due to its inherent manufacturing freedom and layer-by-layer construction; however, the manufacturing orientation in AM is known to have a significant effect on the resulting mechanical properties. The main contribution of this research is the examination of the effect of manufacturing orientation and TPMS type on the mechanical properties of scaffolds manufactured by fused deposition modeling (FDM), a widely used form of AM. The combination of compressive load direction (0 degrees and 90 degrees with respect to the manufacturing orientation) and TPMS type resulted in large changes in compressive strength. The primitive scaffold achieved the best performance in compression tests. It also had the shortest manufacturing time and smallest quantity of support material needed for FDM manufacture. The TPMS scaffold type combined with the loading direction significantly affected the compressive strength and elastic modulus of the scaffolds, showing the importance of considering both these properties in the design of AM scaffold structures. (AU)

FAPESP's process: 18/11183-2 - Investigation about the effect of minimum and periodic surfaces on the compressive strength in specimens obtained by additive manufacture
Grantee:Dianna Araújo de Aquino
Support Opportunities: Scholarships in Brazil - Scientific Initiation