Topology Optimization for Process-Induced Anisotropy in Glass Structures
Leveraging Topology Optimization Algorithms to Address Anisotropic Behavior Introduced by Additive Manufacturing Methods in glass structures
Student:
Mentors:
Andreas Mananas
Faidra Oikonomopoulou
Charalampos Andriotis
This research addresses a critical gap in the structural design of 3D-printed glass by integrating anisotropic material behavior, specifically transverse isotropy, into topology optimization algorithms. Traditional optimization methods assume isotropic material properties, failing to accurately represent the unique characteristics introduced by the layer-by-layer nature of glass additive manufacturing. Factors such as incomplete fusion between layers and geometry-induced corrugations significantly influence structural behavior, yet their exact roles remain unclear.
The novelty of this thesis lies in modifying the Finite Element Analysis (FEA) component of the Solid Isotropic Material with Penalization (SIMP) algorithm to incorporate transverse isotropy directly into the optimization loop. The methodology includes flexural testing to precisely identify the engineered properties of 3D-printed specimens and extensive comparative analysis between pure SIMP algorithms and the newly proposed algorithm. This comparison evaluates the structural behavior improvements provided by the new approach.
The main outcome of this research is the successful integration of transverse isotropy into the optimization algorithm, clearly evidenced by the objective function (compliance) metrics and enhanced principal stress distribution in the resulting geometries. The optimized designs produced by the new algorithm closely align with the practical capabilities and constraints of 3D-printed glass, effectively bridging advanced computational design with realistic manufacturing applications for structurally efficient glass architecture.



