Correlated Additive Feedback for Optimized Cellular Structures

Cornerstone Research Group (CRG) will develop a design tool which accepts digital image correlation responses as modeling feedback for topology optimization of additively manufactured conformal lattice structures. This tool will provide the Navy with a means of utilizing high fidelity performance characterization data for accelerated design validation with automated data processing and finite element modeling correction for application in current and next-generation weapon systems. CRG will develop a design and analysis methodology along with an accompanying design tool for automated utilization of empirical performance data alongside finite element predictions to quantify response uncertainties and guide subsequent design adjustments. In addition to facilitating component design refinement, the computational framework will also extract features from the full field characterization data for identification of qualification signatures for detection of manufacturing defects in production settings. During the Phase I effort, CRG will demonstrate the feasibility of correlated additive feedback for optimized cellular structures by applying the developed methodology to a design space and modeling specification for a structural missile component and performing experimental full field testing on sub-scale optimized benchmark structures.