"Analyzing High-Temperature Creep: Advances in Computational Modeling and Methodological Advances in Metallic Alloys" 

Tahrina Tanjim Shaulin, MSE PhD Candidate 

Advisors: Professor Kevin Trumble & Matt Krane

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ABSTRACT

From the collapse of the World Trade Center collapse to aerospace turbine failures, creep-induced deformation is a key factor in structural failures with critical implications for public safety and engineering design. The prediction of creep deformation in high-temperature environments presents significant challenges, primarily due to the complex interaction of thermal, mechanical, and material property variations that occur over time. Although numerical methods such as FEM and FVM enhance predictive capabilities, they still struggle with material discontinuities and long-term modeling of degradation. This paper explores the challenges of modeling high-temperature creep in metallic alloys and assesses the effectiveness of Finite Element (FEM) and Finite Volume Methods (FVM) in capturing macroscopic deformation, thermal-mechanical interactions, and damage evolution. It also highlights the advantages of hybrid FEM-FVM approaches in improving prediction accuracy and bridging the gap between experimental data and computational models for high-temperature materials.