A Long-Life Regime Probability-Based Fatigue Design Method for Weldments

A probability-based fatigue design methodology for crack initiation and early growth is presented which estimates the average fatigue strength of weldments and its uncertainty using a Monte Carlo simulation. The underlying analytical model considers several different kinds of fatigue variables: applied or induced bending stresses; notch severity; notch-root residual stresses; and notch-root mechanical properties. Each of the fatigue variables is treated as a random variable, and the uncertainty of each is modeled by an appropriate probability distribution function developed from laboratory data.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Metallurgical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Park, Sahng Kyoo

Contributors dc:contributor

• Lawrence, Frederick V., Jr

• Engineering, Civil
• Engineering, Mechanical
• Engineering, Metallurgy

Identifier

(UMI)AAI8823224

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71851