Conference Proceedings
Validation of an open-sourced strain analysis code to assess fragility in 3D-printed porous structures designed for low-rigidity medical implants
WM Chen, PVS Lee
Proceedings 2017 10th International Congress on Image and Signal Processing Biomedical Engineering and Informatics Cisp Bmei 2017 | IEEE | Published : 2017
Abstract
In this paper, we performed a validation study for an open-sourced digital image correlation (DIC) algorithm to evaluate the localized strain behavior of a 3D-printed Ti porous structures designed for low-rigidity bone implants. This study has indicated that strain analysis can be easily conducted on basis of 'grain-like pattern' of the additively-manufactured Titanium samples by the DIC code with no additional treatment. The validity of the results was assessed against commercial software for displacement tracking. The characterization of localized strains which supplements current standard mechanical testing could provide insights into the structural mechanics of the 3D-printed porous samp..
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Funding Acknowledgements
The current work is supported by Shanghai PuJiang Program (17PJ1407100) and the Shanghai Engineering Research Center of Assistive Devices (16441905202). The authors would like to thank Dr. Gabriele Imbalzano from Mechanical Engineering Department, University of Melbourne for his efforts in evaluating the DIC code; Thanks to Dr. Jianhu Shen and Dr. Shanqing Xu from the Centre for Innovative Structures and Materials, RMIT University, for their assistance in preparing the samples used in this study.