MECHANICAL CHARACTERIZATION AND OPTIMIZATION OF ADDITIVELY MANUFACTURED SELF-SUPPORTING STRUT LATTICES UNDER COMBINED LOADING

Date

2025-5-26

Author

Türe, Mustafa Okan

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Additive manufacturing enables the manufacturing of complex parts and lattice designs, unlike the traditional manufacturing methods. Even though its usage is increasing in the industry, the post-processing needs and limited usage of enclosed volume remain challenges. Self-supporting design arises as a solution to these challenges. This thesis investigates the mechanical behavior of additively manufactured self-supporting strut lattice structures embedded in clevis brackets under combined loading scenarios. Through a combined experimental and numerical approach, 3-, 4-, and 6-fold lattice configurations are analyzed based on design variables such as strut radius, height, and overhang angle. The finite element models are validated with experimental results, and Bayesian optimization is employed to minimize bracket stress while reducing weight. The findings demonstrate how lattice topology and parameter variations influence energy absorption and structural performance under tension-shear and compression-shear loads. The results provide insight into enabling efficient lattice integration in real-world industrial applications.

Subject Keywords

Additive Manufacturing, Mechanical Properties, Lattice, Combined Loading, Optimization

URI

https://hdl.handle.net/11511/115159

Collections

Graduate School of Natural and Applied Sciences, Thesis