Publications

Publications

An Intelligent Flaw Monitoring System

This paper introduces an intelligent flaw monitoring system designed to assess damage in aging structures. The system uses a two-phase approach that combines non-destructive evaluation (NDE) with a web-based algorithm to predict remaining fatigue life with confidence bounds.

A Super-Parametric Approach to Estimating Accuracy and Uncertainty of the Finite Element Method

This paper presents a super-parametric approach to address the five major sources of solution uncertainty in the Finite Element Method. It uses a numerical example of a cylindrical pipe with a surface crack to illustrate how to quantify uncertainty and verify solutions.

A HIGH-ACCURACY APPROACH TO FINITE ELEM ENT ANALYSIS USING THE HEXA 27 NODE ELEMENT

This paper compares the accuracy of various hexahedron elements, focusing on the fully quadratic hexa-27 element. It presents the results of a shell-element-based analysis of a barrel vault, proposing guidelines for element selection.

Error Norm vs. Uncertainty Metric in Assessing Accuracy of the Finite Element Method

This paper investigates the accuracy of various hexahedron elements, focusing on the fully quadratic hexa-27 formulation. It proposes a new metric for determining the quality of isoparametric elements and provides guidelines for element selection.

Ship Shock Trial Simulation of USS Winston S. Churchill (DDG81): Surrounding Fluid Effect

David T. Hart

This paper uses computational fluid dynamics to simulate the shock trials of the USS Winston S. Churchill. It examines the amount of fluid modeling required to accurately simulate an underwater explosion's effect on the ship's structure.