ORIGINAL CONTRIBUTION
Quasi-static compression and compression–compression fatigue behavior of regular and irregular cellular biomaterials
Sunil Raghavendra,
Alberto Molinari,
Anni Cao,
Chao Gao,
Filippo Berto,
Gianluca Zappini, Matteo Benedetti,
Corresponding Author
Sunil Raghavendra
Department of Industrial Engineering, University of Trento, Trento, Italy
Correspondence
Sunil Raghavendra, Department of Industrial Engineering, University of Trento, Via Sommarive 9, Trento 38123, Italy.
Email: [email protected]
Search for more papers by this authorAlberto Molinari
Department of Industrial Engineering, University of Trento, Trento, Italy
Search for more papers by this authorAnni Cao
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Search for more papers by this authorChao Gao
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Search for more papers by this authorFilippo Berto
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Search for more papers by this authorMatteo Benedetti
Department of Industrial Engineering, University of Trento, Trento, Italy
Search for more papers by this authorSunil Raghavendra,
Alberto Molinari,
Anni Cao,
Chao Gao,
Filippo Berto,
Gianluca Zappini, Matteo Benedetti,
Corresponding Author
Sunil Raghavendra
Department of Industrial Engineering, University of Trento, Trento, Italy
Correspondence
Sunil Raghavendra, Department of Industrial Engineering, University of Trento, Via Sommarive 9, Trento 38123, Italy.
Email: [email protected]
Search for more papers by this authorAlberto Molinari
Department of Industrial Engineering, University of Trento, Trento, Italy
Search for more papers by this authorAnni Cao
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Search for more papers by this authorChao Gao
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Search for more papers by this authorFilippo Berto
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Search for more papers by this authorMatteo Benedetti
Department of Industrial Engineering, University of Trento, Trento, Italy
Search for more papers by this authorAbstract
The main aim of the current study is to evaluate the compressive quasi-static and fatigue properties of titanium alloy (Ti6Al4V) cellular materials, with different topologies, manufactured via laser powder bed fusion (LPBF) process. The topologies herein considered are lattice-based regular and irregular configurations of cubic, star, and cross-shaped unit cell along with trabecular-based topology. The results have indicated that the effective stiffness of all configurations are in the range of 0.3–20 GPa, which is desirable for implant applications. The morphological irregularities in the structures induce bending-dominated behavior affecting more the topologies with vertical struts. The S–N curves normalized with respect to the yield stress indicate that the behavior of star regular structures is between purely stretching-dominated cubic and purely bending-dominated cross-based structures. Trabecular structures have shown desirable quasi-static and fatigue properties despite the random distribution of struts.
CONFLICT OF INTEREST
The authors declared that there is no conflict of interest.
Open Research
DATA AVAILABILITY STATEMENT
Research data are not shared.
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