Date of Award
Master of Science (MS)
Aerospace, Physics, and Space Sciences
The purpose of this work is to explore the stress-based topology optimization of structure that utilizes laminated composites and 3D woven Pi preform joints. Simple geometry, loading, and boundary conditions are considered. At a finite element level, an aggregate stress ratio is developed for Pi joint and acreage laminate elements. A basic descent method of moving asymptotes (BDMMA) algorithm is created to solve all optimization problems. Topology results for two different stress-based formulations and a compliance minimization problem are compared, followed by an in-depth analysis at a Pi joint and laminate level.
Broodryk, Iwan, "Stress-Based Topology Optimization of Pi Preform-Bonded Composite Laminate Structure" (2022). Theses and Dissertations. 416.