Concurrent Topological Structure and Cross-Infill Angle Optimization for Material Extrusion Polymer Additive Manufacturing with Microstructure Modeling

Tang, Ruixiao; Zhang, Chenghu; Liu, Ji‐Kai

doi:10.3390/mi13060852

Cited by 2 publications

(1 citation statement)

References 39 publications

(42 reference statements)

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“…The optimized structure was verified to have good mechanical properties via numerical simulation, while the designed model was fabricated using stereolithography appearance (SLA) technology. Tang et al [26] proposed an optimization method for topology optimization and cross-fill angles in material extrusion-based additive manufacturing, which was verified using microstructural and numerical simulations of 3D printed parts, and it was an effective method for structural optimization. Zeng et al [27] designed an electric vertical takeoff and landing aircraft with a lightweight design of the structural components based on the variable density method, while some major components were designed using the fused deposition modeling (FDM) method to reduce the weight of the aircraft.…”

Section: Literature Reviewmentioning

confidence: 99%

Topological Design of a Hinger Bracket Based on Additive Manufacturing

Xie

Liu

et al. 2023

Materials

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Topology optimization technology is often used in the design of lightweight structures under the condition that mechanical performance should be guaranteed, but a topology-optimized structure is often complicated and difficult to process using traditional machining technology. In this study, the topology optimization method, with a volume constraint and the minimization of structural flexibility, is applied to the lightweight design of a hinge bracket for civil aircraft. A mechanical performance analysis is conducted using numerical simulations to obtain the stress and deformation of the hinge bracket before and after topology optimization. The numerical simulation results show that the topology-optimized hinge bracket has good mechanical properties, and its weight was reduced by 28% compared with the original design of the model. In addition, the hinge bracket samples before and after topology optimization are prepared with additive manufacturing technology and mechanical performance tests are conducted using a universal mechanical testing machine. The test results show that the topology-optimized hinge bracket can satisfy the mechanical performance requirements of a hinge bracket at a weight loss ratio of 28%.

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Section: Literature Reviewmentioning

confidence: 99%