Study of the compression behaviour of Ti6Al4V trabecular structures produced by additive laser manufacturingShow others and affiliations
2019 (English)In: Materials, E-ISSN 1996-1944, Vol. 12, no 9, article id 1471
Article in journal (Refereed) Published
Abstract [en]
The aim of this paper was to investigate the compression properties of several trabecular structures produced by additive laser manufacturing of a Ti6Al4V, having different densities and unit cells. Filling space structures were investigated, with different unit cells characterized by both bending-dominated and stretching-dominated behaviour. The stiffness and yield strengthwere correlated to relative density according to the Gibson and Ashby model. For a constant porosity, the stiffness and the yield strength varied between two extremes represented by the cubic structure (stretching-dominated deformation) and the cross structure (bending-dominated deformation). The properties of the deformed structures did not differ substantially from those of the regular structures. Only in the cubic structure did distortion enhance the contribution of bending to deformation and both stiffness and strength decreased. Cross structures displayed the highest strength at constant stiffness than the others, since they are characterized by the most favourable orientation of the struts.
Place, publisher, year, edition, pages
MDPI, 2019. Vol. 12, no 9, article id 1471
Keywords [en]
Additive manufacturing, Mechanical properties, Ti alloy, Trabecular structures, 3D printers, Additives, Aluminum alloys, Biomechanics, Manufacture, Stiffness, Ternary alloys, Titanium alloys, Vanadium alloys, Compression behaviours, Compression properties, Constant porosities, Different densities, Laser manufacturing, Regular structure, Ti alloys, Trabecular structure, Bending (deformation)
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-44404DOI: 10.3390/ma12091471ISI: 000469757500112PubMedID: 31067758Scopus ID: 2-s2.0-85065647957Local ID: POA JTH 2019;JTHÖvrigtISOAI: oai:DiVA.org:hj-44404DiVA, id: diva2:1323473
2019-06-122019-06-122024-07-04Bibliographically approved