CSME Conference Proceedings (May 27-30, 2018)
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Browsing CSME Conference Proceedings (May 27-30, 2018) by Author "Akbarzadeh, Hamid"
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Item Open Access Design, Analysis And 3D Printing Of Architected Sandwich Panels(CSME-SCGM, May-18) Sarvestani, Hamidreza Yazdani; Akbarzadeh, Hamid; Niknam, Hamed; Hermenean, KyleIn this study, we implement a finite element approach and conduct experimental impact tests to evaluate the performance of 3D printed lightweight sandwich panels with architected cellular cores of programmable six-sided cells. The standard mechanics homogenization technique is implemented through a finite element modelling to accurately predict the effective mechanical properties of architected cellular cores. We implement an explicit large deformation finite element simulation using ANSYS to analyze the elasto-plastic behavior of sandwich panels under a low-velocity impact. To experimentally corroborate the developed computational model and to evaluate the manufacturability of architected sandwich panels, we use the fused deposition modeling to 3D print samples of polylactic acid biopolymers. We conduct low-velocity impact experimental tests on the 3D printed panels to investigate their energy absorption capabilities. The results show that the auxetic sandwich panel is potentially an appropriate candidate for energy absorption applications due to its high energy absorption capability.Item Open Access Mechanical Analysis Of Multi-Directional Functionally Graded Cellular Plates(CSME-SCGM, May-18) Niknam, Hamed; Akbarzadeh, Hamid; Therriault, Daniel; Rodrigue, DenisIn this study, the concept of multi-directional functionally graded cellular material (FGCM) is introduced. FGCMs consist of two spatially-varying engineered phases: solid and void. Different parameters, such as relative density, cell topology, cell orientation, and cell elongation, can be tailored in multiple directions to optimize their mechanical performance. We implement a homogenization technique to evaluate the structural response of plates made by advanced cellular solids. The homogenized effective properties are used in a third-order shear deformation theory (TSDT) formulation. The governing differential equations are solved by a finite element method to predict the mechanical response of FGCM plates. The numerical results reveal that it is possible to increase the buckling load as much as 115% and decrease the maximum deflection about 60% by using an FGC structure.Item Open Access Thermal Conductivity Of Advanced Architected Cellular Materials(CSME-SCGM, May-18) Mirabolghasemi, Armin; Akbarzadeh, Hamid; Rodrigue, Denis; Therriault, Daniel