Salcedo, EduardoBaek, DongcheonBerndt, AaronRyu, Jong Eun2018-06-152018-06-152018-08Salcedo, E., Baek, D., Berndt, A., & Ryu, J. E. (2018). Simulation and validation of three dimension functionally graded materials by material jetting. Additive Manufacturing, 22, 351–359. https://doi.org/10.1016/j.addma.2018.05.027https://hdl.handle.net/1805/16529The goal of this work is to validate the material models for parts created with a Material Jetting 3-dimensional printer through the comparison of Finite Element Analysis (FEA) simulations and physical tests. The strain maps generated by a video extensometer for multi-material samples are compared to the FEA results based on our material models. Two base materials (ABS-like and rubber-like) and their composites are co-printed in the graded tensile test samples. The graded islands are embedded in the rubber-like test specimens. The simulations were conducted utilizing previously fitted material models, a two-parameter Mooney-Rivlin model for the elastic materials (Tango Black+, DM95, and DM60) and a bilinear model for the rigid material (Vero White+). The results show that the simulation results based on our material models can predict the deformation behaviors of the multi-material samples during a uniaxial tensile test. Our simulation results are able to predict the maximum strain in the matrix material (TB+) within 5% error. Both global deformation pattern and local strain level confirm the validity of the simulated material models.enPublisher Policymaterial jettingfunctionally graded materials3-dimensional printingArticle