Femoral stem incorporating a diamond cubic lattice structure: Design, manufacture and testing

Jetté, Bruno; Braïlovski, Vladimir; Dumas, Mathieu; Simoneau, Charles; Terriault, Patrick

doi:10.1016/j.jmbbm.2017.08.034

Cited by 98 publications

(89 citation statements)

References 46 publications

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“…As such, the resulting volume can be represented by a limited number of triangular facets in an STL file format, which enables the modelling of lattice structures comprising a very large number of cells. Figures 2c, d respectively depict a modelled crossed-shape substructure and a cubic unit cell with two independent parameters, which fully define their geometry: the pore diameter d and the beam thickness t (see [30,35] for more details). The pore diameter d, indicated in Figure 2d, corresponds to the largest …”

Section: Definition Of a Unit Cellmentioning

confidence: 99%

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

Soul

Terriault

Braïlovski

2018

JMMP

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Abstract:The fabrication of engineered lattice structures has recently gained momentum due to the development of novel additive manufacturing techniques. Interest in lattice structures resides not only in the possibility of obtaining efficient lightweight materials, but also in the functionality of pre-designed architectured structures for specific applications, such as biomimetic implants, chemical catalyzers, and heat transfer devices. The mechanical behaviour of lattice structures depends not only the composition of the base material, but also on the type and size of the unit cells, as well as on the material microstructure resulting from a specific fabrication procedure. The present work focuses on the static and fatigue behavior of diamond cell lattice structures fabricated from an AlSiMg alloy by laser powder bed fusion technology. In particular, the specimens were fabricated with three different orientations of lattice cells-[001], [011], [111]-and subjected to static tensile testing and force-controlled pull-pull fatigue testing up to 1 × 10 7 cycles. In parallel, the mechanical behavior of fully dense plain and notched tensile specimens was also studied and compared to that of their lattice counterparts. Results showed a significant effect of the cell orientation on the fatigue lives: specimens oriented at [001] were~30% more fatigue-resistant than specimens oriented at [011] and [111].

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Section: Definition Of a Unit Cellmentioning

confidence: 99%

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

Soul

Terriault

Braïlovski

2018

JMMP

Self Cite

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“…Thanks to this, it is possible to create a stable implant-tissue connection without the necessity of using bone cement. Properly designed structure of the porous implant allows better adaptation to the biomechanical conditions in the tissue implant system, which reduces the risk of implant failure [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

The manufacturability and compression properties of the Schwarz Diamond type Ti6Al4V cellular lattice fabricated by selective laser melting

Maszybrocka

Gapiński

Dworak

et al. 2019

Int J Adv Manuf Technol

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Selective laser melting technology makes it possible to produce 3D cellular lattice structures with controlled porosity. The paper reflects to machining and examination of structures with predefined distribution, shape and size of the pores. In the study, the porous structures of Ti6Al4V were investigated. The tests were carried out using structures of spatial architecture of Schwarz D TPMS geometry with a total porosity of 60% and 80% and various pore sizes. Dimensional accuracy of additively manufactured structures was measured in relation to the 3D model. Geometry of the final structure differed from the CAD model in the range ± 0.3 mm. The surface morphology and porosity of the solid struts were also checked. The mechanical properties of the structures were determined in a static compression test.

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“…Among them, the diamond structure is similar to the cancellous bone in that the close angle between inter-rod angle and the inter-trabecular angle [106]; thus, it has inherent advantages of similar microstructures. Jett et al applied the diamond lattice structure to the filling of the femoral stem [107], which realized better mechanical properties that match with the bone. Because the transition of the diamond structure joint influences the permeability and mechanical properties of the structure, the surface stress concentration can be reduced by smoothing the surface, thereby generating the optimized diamond lattice structure [108].…”

Section: Lattice Structure Designmentioning

confidence: 99%

Additive Manufacturing of Customized Metallic Orthopedic Implants: Materials, Structures, and Surface Modifications

Bai

Cheng

Chen

et al. 2019

Metals

131

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Metals have been used for orthopedic implants for a long time due to their excellent mechanical properties. With the rapid development of additive manufacturing (AM) technology, studying customized implants with complex microstructures for patients has become a trend of various bone defect repair. A superior customized implant should have good biocompatibility and mechanical properties matching the defect bone. To meet the performance requirements of implants, this paper introduces the biomedical metallic materials currently applied to orthopedic implants from the design to manufacture, elaborates the structure design and surface modification of the orthopedic implant. By selecting the appropriate implant material and processing method, optimizing the implant structure and modifying the surface can ensure the performance requirements of the implant. Finally, this paper discusses the future development trend of the orthopedic implant.

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Femoral stem incorporating a diamond cubic lattice structure: Design, manufacture and testing

Cited by 98 publications

References 46 publications

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

The manufacturability and compression properties of the Schwarz Diamond type Ti6Al4V cellular lattice fabricated by selective laser melting

Additive Manufacturing of Customized Metallic Orthopedic Implants: Materials, Structures, and Surface Modifications

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