چکیده مقاله
In this study, to enhance energy absorption performance, a new hybrid structure was designed and introduced by combining a hexagonal honeycomb energy absorbing structure with an expandable tubular energy absorber The primary objective was to investigate the synergistic effect resulting from the hybridization of these two mechanisms and to evaluate its performance quantitatively After designing three structures simple honeycomb, expandable tube, and hybrid in SolidWorks 2023, quasi static compression simulation was performed using the Explicit method in Abaqus 2022 software, employing the Drucker Prager material model After confirming the superiority of the hybrid structure in the simulation, a sample was fabricated using 3D printing and subjected to an experimental compression test The simulation results revealed that the hybrid structure, compared to the simple honeycomb, increased Total Energy Absorption EA and Mean Crushing Force MCF by an average of approximately 82%, and Specific Energy Absorption SEA by 27 5% This significant improvement is attributed to the simultaneous and synergistic action of the lattice cell collapse mechanism and the extensive plastic deformation of the tube, leading to more uniform stress distribution and more effective engagement of the material volume The acceptable agreement between the experimental and numerical results confirmed the validity of the analysis This research presents an effective step toward developing a new generation of lightweight energy absorbers with high efficiency and reliability
کلیدواژهها
نویسندگان
Mohammad Ali Saeimi Sadigh
Associate Professor, Department of Mechanical Engineering, Azarbaijan Shahid Madani University, Tabriz
Hadi Safi Valilu
BSc Student, Department of Mechanical Engineering, Azarbaijan Shahid Madani University, Tabriz
Mahdi Rashidi Noshahr
BSc Student, Department of Mechanical Engineering, Azarbaijan Shahid Madani University, Tabriz
Moosa Sajed
Assistant Professor, Department of Mechanical Engineering, Azarbaijan Shahid Madani University, Tabriz
شیوه ارجاع
Saeimi Sadigh, Mohammad Ali and Safi Valilu, Hadi and Rashidi Noshahr, Mahdi and Sajed, Moosa,1404,Investigation of Energy Absorption Performance of Lattice Hybrid Structure Combining Hexagonal Honeycomb and Expansion Tube Mechanism: A Numerical Study,8th International Conference on Welding and Non Destructive Testing & 26th National Conference on Welding & Inspection & 15th National Conference on NDT & 4th National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هشتمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، بیست و ششمین کنفرانس ملی جوش و بازرسی، پانزدهمین کنفرانس ملی آزمایش های غیرمخرب و چهارمین کنفرانس ملی ساخت افزایشی20 بهمن 1404 · تهران