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Materials Science at Oregon State University

An innovative reactive-transport modeling framework for cementitious porous media

Date: Thursday, Dec 1st
Presenter: Prof. Burkan Isgor, OSU Civil Engineering and Materials Science

Abstract


A reactive-transport modeling framework is being developed to connect finite element analysis (FEM) with thermodynamic modeling of cementitious systems to model reactive transport processes. The FEM module is responsible for modeling multiphysics phenomena such as mass transport, heat transfer, phase flow and kinetics, while thermodynamic module is used to model chemically complex reaction computations based on Gibbs Energy Minimization (GEM) theory. A non-iterative operator splitting technique in a time marching scheme is used for uncoupling the multiphysics phenomena from reaction equations. The framework is able to analyze complex chemical systems including processes that take place in cementitious materials. The presentation summarizes examples using the framework, its current limitations, and future work.

Bio:
O. Burkan Isgor is a Professor in the School of Civil and Construction Engineering at Oregon State University. Dr. Isgor received his engineering degree from Bogazici University (formerly Robert College) in 1995 and completed his masters and doctoral studies at Carleton University in 1997 and 2001, respectively. After working as a finite element software developer structural engineering applications, he served as a faculty member in the Department of Civil and Environmental Engineering at Carleton University from 2003 to 2012. Dr. Isgor’s work is focused on bridging the gap between nano-scale and macro-scale scientific and engineering problems using applied mathematics, computational materials science, inverse modeling, and advanced analytical, spectroscopic and electrochemical methods. This framework has applications in surface and interface science, corrosion science, electrochemistry, thin films/oxides, durability of materials, transport in porous media, cement and concrete research, and non-destructive testing.