Laser & Optoelectronics Progress, Volume. 58, Issue 17, 1714006(2021)

Compressive Properties and Numerical Simulation of Porous Structure Fabricated by Laser Powder Bed Fusion

Runping Chen1,2, Dongyun Zhang1,2、*, Songtao Hu1,2, Yangli Xu1,2, Tingting Huang1,2, Long Zhang1,2, and Zhiyuan Liu1,2
Author Affiliations
  • 1Institute for Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 2Beijing Engineering Research Center of 3D Printing for Digital Medical Health, Beijing , 100124, China
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    The human bone appears as a hierarchical structure composed of cortical bone with high density and strength and cancellous bone with low density and blood vessels. Therefore, the structure and mechanical properties of human implants should match the characteristics of human bone. Based on the stress on the natural human bone, the titanium alloy porous structure designed by topology optimization method was fabricated by laser powder bed fusion (LBPF). The mechanical properties and deformation failure mode of the porous structure were analyzed by compression experiment and numerical simulation. It was found that the numerical simulation and experimental results have a high consistency in the current work. Finally, by comparing with the mechanical properties of human natural bone, combined with the failure mode of porous structure, a porous material suitable for human implants was obtained.

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    Runping Chen, Dongyun Zhang, Songtao Hu, Yangli Xu, Tingting Huang, Long Zhang, Zhiyuan Liu. Compressive Properties and Numerical Simulation of Porous Structure Fabricated by Laser Powder Bed Fusion[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1714006

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Dec. 28, 2020

    Accepted: Jan. 12, 2021

    Published Online: Sep. 14, 2021

    The Author Email: Zhang Dongyun (zhangdy@bjut.edu.cn)

    DOI:10.3788/LOP202158.1714006

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