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Search Publications by: Jeffrey T. Fong (Fed)

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Displaying 26 - 44 of 44

Design of a Python-based Plug-in for Benchmarking Probabilistic Fracture Mechanics Computer Codes with Failure Event Data

July 27, 2009
Author(s)
Jeffrey T. Fong, Roland deWit, Pedro V. Marcal, James J. Filliben, Nathanael A. Heckert, Stephen R. Gosselin
In a 2007 paper entitled "Application of Failure Event Data to Benchmark Probabilistic Fracture Mechanics (PFM) Computer Codes" (Simonen, F. A., Gosselin, S. R., Lydell, B. O. Y., Rudland, D. L., & Wikowski, G. M. Proc. ASME PVP Conf., San Antonio, TX

A Design-of-Experiments Plug-In for Estimating Uncertainties in Finite Element Simulations

May 18, 2009
Author(s)
Jeffrey T. Fong, Roland deWit, Pedro V. Marcal, James J. Filliben, Nathanael A. Heckert
The objective of this paper is to introduce an economical and user-friendly technique for estimating a specific type of finite element simulation uncertainties, or, "error bars," for a class of mathematical models, of which no closed-form or approximate

Robust Engineering Design for Failure Prevention

July 27, 2008
Author(s)
Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Roland deWit, Barry Bernstein
To advance the state of the art of engineering design, we introduce a new concept on the "robustness" of a structure by measuring its ability to sustain a sudden loss of a part without causing an immediate collapse. The concept is based on the premise that

Uncertainty Estimate of Charpy Data Using a 5-factor 8-run Design of Experiments

July 27, 2008
Author(s)
Charles G. Interrante, Jeffrey Fong, James J. Filliben, N. Alan Heckert
Scatter in laboratory data with duplicates on Charpy impact tests is analyzed by identifying several sources of variability such as temperature, manganese sulfide, initial strain, mis-orientation, and notch radius in order to estimate the predictive 95%

Engineering Safety, Applied Mechanics, and Nondestructive Evaluation

July 26, 2007
Author(s)
Jeffrey T. Fong, Owen F. Hedden
The American Society of Mechanical Engineers (ASME) Pressure Vessels and Piping (PVP) Division, through its Materials and Fabrication Committee and Code and Standards Committee, sponsors a 2-day symposium on Nondestructive Evaluation (NDE) in honor of Dr

Uncertainty in Finite Element Modeling and Failure Analysis: A Metrology-based Approach

February 1, 2006
Author(s)
Jeffrey Fong, James J. Filliben, Roland deWit, Richard J. Fields, Barry Bernstein, Pedro V. Marcal
In this paper, we first review the impact of the powerful finite element method (FEM) in structural engineering, and then address the shortcomings of FEM as a tool for risk-based decision making and incomplete-data-based failure analysis. To illustrate the