Volume 19, Issue 8 (August 2019)                   Modares Mechanical Engineering 2019, 19(8): 1953-1958 | Back to browse issues page

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Faramarzian Haghighi A, Haerian Ardakani A, Kafaee Razavi M, Moloodi A. Simulation of Mechanical Behavior and Construction of Regular PLA Scaffolds. Modares Mechanical Engineering 2019; 19 (8) :1953-1958
URL: http://mme.modares.ac.ir/article-15-22364-en.html
1- Material Science Department, Mechanical Engineering & Material Science Faculty, Sadjad University, Mashhad, Iran
2- Bio-electric Department Department, Electrical Engineering & Medical Engineering Faculty, Sadjad University, Mashhad, Iran
3- Materials Research Department, Academic Center for Education, Culture and Research (ACECR), Mashhad, Iran , a.moloodi@jdm.ac.ir
Abstract:   (3009 Views)
In this study, the mechanical properties of one of the most widely used polymeric biomaterials in the body called Poly Lactic Acid (PLA) in the porous state were evaluated. Firstly, the initial regular porous structures, based on the tetrahedron-catheter model known as Kelvin model, were designed for simulating bone tissue, using 3D design software with FDM technique. Afterwards, pressure test was used to determine the mechanical properties and mode of failure. Finally, experimental results were compared with the simulation software analysis results. The results showed that increasing the porosity reduces the strength and the increasing the cell size in a constant porosity results in increased compressive strength. Also, by decreasing the porosity, the amount of the strain up to fracture increases in a relatively constant stress. The brittle failure at 45° in the samples of high porosity was shown. However, the samples with a lower porosity had a relative ductile behavior and as the pressure rises, the cells accumulate on each other and change the form to the fracture point. Comparing the empirical and the simulation results showed that there is a good agreement between them and the simulation model has a high reliability for the porous model.
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Article Type: Original Research | Subject: Build add-on
Received: 2018/06/27 | Accepted: 2019/01/26 | Published: 2019/08/12

1. Agrawal CM1, Ray RB. Biodegradable polymeric scaffolds for musculoskeletal tissue engineering. Journal of Biomedical Materials Research. 2001;55(2):141-50. https://doi.org/10.1002/1097-4636(200105)55:2<141::AID-JBM1000>3.0.CO;2-J [Link] [DOI:10.1002/1097-4636(200105)55:23.0.CO;2-J]
2. Spector M, Michno MJ, Smarook WH, Kwiatkowski GT. A high-modulus polymer for porous orthopedic implants: biomechanical compatibility of porous implants. Journal of Biomedical Materials Research. 1978;12(5):665-77. [Link] [DOI:10.1002/jbm.820120508]
3. Kakami C, Nakano H, Hotta Y, Miyazaki T, Maki K. A study of biocomposite resins for creating Orthodontic appliances using a 3D printer. Orthodontic Waves. 2017;76(3):140-150. [Link] [DOI:10.1016/j.odw.2017.04.002]
4. Souri A, Shahbeyk S. Numerical implementation and calibration of microplane model for closed-cell metal foams with spherical cellular structure. Modares Mechanical Engineering. 2015;14(10):121-128. [Persian] [Link]
5. Hosseinpour M, Abbaszadeh M, Mirzaee I. Geometrical modeling of closed-cell metal foams using stochastic cells generation. Modares Mechanical Engineering. 2014;14(3):129-135. [Persian] [Link]
6. Sue JW. Effect of microstructure of closed cell foam on strength and effective stiffness [Dissertation]. Texas: Texas A&M University; 2006. [Link]
7. Molatefi H, Mozafari H. Investigation on in-plane behavior of bare and foam-filled honeycombs in quasi-static and dynamic states by using numerical method. Modares Mechanical Engineering. 2015;14(15):177-185. [Persian] [Link]
8. Gómez-López LM, Miguel V, Martínez A, Coello J, Calatayud A. Simulation and modeling of single point incremental forming processes within a solidworks environment. Procedia Engineering. 2013;63:632-641. [Link] [DOI:10.1016/j.proeng.2013.08.253]
9. Nejatbakhsh H, Shahnazari H, Gharani A, Tarkash Esfahani R. A comprehensive modeling and analysis guide in ABAQUS software. Tehran: Abed Publishing; 2012. [Persian] [Link]
10. Fatt MSH, Park KS. Perforation of honeycomb sandwich plates by projectiles. Composites Part A: Applied Science and Manufacturing. 2000;31(8):889-899. [Link] [DOI:10.1016/S1359-835X(00)00021-X]
11. Alavi Nia A, Kazemi M. Analytical study of high velocity impact on sandwich panels with foam core and aluminum face-sheets. Modares Mechanical Engineering. 2015;15(6):231-239. [Persian] [Link]
12. Venkatachalam G. Micro-mechanics of Foam using unit cell (closed cell) approach. Indian Journal of Science and Technology. 2013;6(9):5220-5222. [Link]

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