Keywords
finite element analysis
porous polymer structure
nonlinear mechanical response
micro-damage formation
How to Cite
Abstract
Three dimensional printing technology has widely been utilized to construct a variety of complex biomimetic structures. A target structure is designed using 3D-CAD and then the CAD data is sent to the controlling unit of a 3D-printing machine to fabricate a corresponding real structure. Recently, FEA installed into 3D-CAD can be used to assess their structural integrity of the designed structures. However, it is still difficult to analyze the nonlinear mechanical responses using FEA. The aim of the present study is to develop a nonlinear FEA method to characterize the elastic-plastic deformation behaviors along with micro-damage formations of 3D-printed polymeric porous structures. It was found that the proposed FEA method can reasonably be used to predict the nonlinear behaviors of two different types of 3D-printed porous structures under compressive loading. Mechanical properties such as stiffness, fracture energy and strength were also well predicted by FEA. The micro-fracture processes of the real structures were well characterized by the damage models with FEA including the tensile cracking with the maximum principal stress criterion and the compressive crushing with the minimum principal strain criterion.
References
Attarilar, S., Ebrahimi, M., Djavanroodi, F., Fu, Y., Wang, L., & Yang, J. (2021). 3D printing technologies in metallic implants: A thematic review on the techniques and procedures. International Journal of Bioprinting, 7(1), Article 306. https://doi.org/10.18063/ijb.v7i1.306
Chen, Y., Quan, S., Huang, S., Liu, W., Chen, Z., Liu, J., Li, C., & Yang, H. (2024). Applications and progress of 3D-printed bioceramic scaffolds in bone tissue repair and immune regulation. Ceramics International, 50(23), 48891–48908. https://doi.org/10.1016/j.ceramint.2024.09.294
Cipriani, C. E., Ha, T., Martinez Defilló, O. B., Myneni, M., Wang, Y., Benjamin, C. C., Wang, J., Pentzer, E. B., & Wei, P. (2021). Structure–processing–property relationships of 3D printed porous polymeric materials. ACS Materials Au, 1(1), 69–80. https://doi.org/10.1021/acsmaterialsau.1c00017
Fang, W., Yang, M., Wang, L., Li, W., Liu, M., Jin, Y., Wang, Y., Yang, R., Wang, Y., Zhang, K., & Fu, Q. (2023). Hydrogels for 3D bioprinting in tissue engineering and regenerative medicine: Current progress and challenges. International Journal of Bioprinting, 9(5), Article 759. https://doi.org/10.18063/ijb.759
Kostretsova, N., Pesce, A., Anelli, S., Nuñez, M., Morata, A., Smeacetto, F., Torrella, M., & Tarancón, A. (2024). Single-step fully 3D printed and co-sintered solid oxide fuel cells. Journal of Materials Chemistry A, 12(34), 22960-22970. https://doi.org/10.1039/D4TA02490G
Li, J., Li, M., Koh, J. J., Wang, J., & Lyu, Z. (2024). 3D-printed biomimetic structures for energy and environmental applications. DeCarbon, 3, Article 100026. https://doi.org/10.1016/j.decarb.2023.100026
Ma, T., Zhang, Y., Ruan, K., Guo, H., He, M., Shi, X., Guo, Y., Kong, J., & Gu, J. (2024). Advances in 3D printing for polymer composites: A review. InfoMat. 6(6), Article e12568. https://doi.org/10.1002/inf2.12568
Naghavi, S. A., Tamaddon, M., Marghoub, A., Wang, K., Babamiri, B. B., Hazeli, K., Xu, W., Lu, X., Sun, C., Wang, L., Moazen, M., Wang, L., Li, D., & Liu, C. (2022). Mechanical characterisation and numerical modelling of TPMS-based gyroid and diamond Ti6Al4V scaffolds for bone implants: An integrated approach for translational consideration. Bioengineering, 9(10), Article 504. https://doi.org/10.3390/bioengineering9100504
Saleh, M., Anwar, S., Al-Ahmari, A. M., & Alfaify, A. (2022). Compression performance and failure analysis of 3D-printed carbon fiber/PLA composite TPMS lattice structures. Polymers, 14(21), Article 4595. https://doi.org/10.3390/polym14214595
Santiago, R., Ramos, H., AlMahri, S., Banabila, O., Alabdouli, H., Lee, D. W., Aziz, A., Rajput, N., Alves, M., & Guan, Z. (2023). Modelling and optimisation of TPMS-based lattices subjected to high strain-rate impact loadings. International Journal of Impact Engineering, 177, Article 104592. https://doi.org/10.1016/j.ijimpeng.2023.104592
Siddique, S. H., Hazell, P. J., Wang, H., Escobedo, J. P., & Ameri, A. A. H. (2022). Lessons from nature: 3D printed bio-inspired porous structures for impact energy absorption – A review. Additive Manufacturing, 58, Article 103051. https://doi.org/10.1016/j.addma.2022.103051
Vafadar, A., Guzzomi, F., Rassau, A., & Hayward, K. (2021). Advances in metal additive manufacturing: A review of common processes, industrial applications, and current challenges. Applied Sciences, 11(3), Article 1213. https://doi.org/10.3390/app11031213
Wang, D., Chen, D., & Chen, Z. (2020). Recent progress in 3D printing of bioinspired structures. Frontiers in Materials, 7, Article 286. https://doi.org/10.3389/fmats.2020.00286
Yan, X., Bethers, B., Chen, H., Xiao, S., Lin, S., Tran, B., Jiang, L., & Yang, Y. (2021). Recent advancements in biomimetic 3D printing materials with enhanced mechanical properties. Frontiers in Materials, 8, Article 518886. https://doi.org/10.3389/fmats.2021.518886