Finite Element Simulation of Stainless Steel Porous Scaffolds for Selective Laser Melting (SLM) and Its Experimental Investigation
Source abstract
Abstract
In recent years, bone defect and bone tissue damage have become common clinical diseases. The development of bionic bone has had an important impact on the repair and reconstruction of bone tissue. Porous scaffolds have the advantages of adjustable pore size and controllable shape, which can solve the problem of mismatch in the process of bone repair, but traditional processing methods cannot overcome the challenge of the preparation of complex porous scaffolds. Therefore, 316L porous stainless steel scaffolds with different pore sizes (200 μm, 300 μm, 400 μm and 500 μm, respectively) were prepared by selective laser melting. Stress and strain were simulated and analyzed by using a finite element simulation method. Combined with a heat treatment experiment, a hardness test, a metallographic observation and a compression test, porous scaffolds were studied. The mechanical properties and microstructures of the scaffolds were studied and analyzed, and the optimized porous scaffolds were obtained. With reasonable melting parameters, the porous scaffolds that could meet the mechanical property requirements of load-bearing bone restorations were prepared by SLM.
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Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Bone Tissue Engineering Materials · Titanium Alloys Microstructure and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, China
Jinan Engineering Polytechnic, Jinan 250200, China
Funding
Natural Science Foundation of Shandong Province, China · National College Student Innovation and Entrepreneurship Program · the Science and Technology Enterprise Innovation Program of Shandong Province, China · the Shandong Graduate Education and Teaching Reform Research Project · the High quality curriculum construction project of Shandong Jianzhu University graduate education
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