WE Colloquium: Charles Fisher, Applying Integrated Computational Materials Engineering (ICME) Techniques to Shipbuilding

Materials Engineer; Welding, Processing, and Nondestructive Evaluation (NDE) Branch; Naval Surface Warfare Center, Carderock Division

Abstract

The Integrated Computational Materials Engineering (ICME) paradigm has found increased use across the scientific community to enable reduction of costly physical testing and improve efficiency. For the U.S. Navy, the use of computational simulations is prevalent for structural finite-element analysis. However, current practice for FEA simulations does not integrate material processing into the structural design or failure-mode prediction calculations. Thus, the influence of residual stress and distortion induced by the fabrication process are not included in the simulation, yielding uncertainty in the computational models. To address this, numerous projects have initiated to validate process simulation techniques across the entire shipbuilding process - from design to life-cycle prediction. The end goal is improved confidence in and use of computational simulation through insertion of ICME techniques in order to better serve the Naval enterprise.

 

Bio

 

Dr. Charles Fisher is a Materials Engineer in the Welding, Processing, and Nondestructive Evaluation (NDE) Branch at the Naval Surface Warfare Center, Carderock Division (NSWCCD). Dr. Fisher has been with the US Navy for 7 years working in computational weld mechanics (CWM) and Integrated Computational Materials Engineering (ICME)-related programs, with a focus on residual stress and distortion analysis in welded structures. Recently, expanded project focus has included how ICME might be used to accelerate additive manufacturing (AM) technology advancement. He previously served on the organizing committee for the 4th and 5th World Congress on ICME, and currently serves on the TMS ICME committee and is the Chair for the AWS A9 Committee on Computerization of Welding Information. He holds a B.S. in Materials Engineering (MatE) from Iowa State University and a M.S. and Ph.D. in Materials Science and Engineering (MSE) from the University of Florida.