Fracture and Fatigue Analysis of Welded Structures Using Finite Element Analysis

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Vodzyk, Denys




Current thesis work focuses on an automated fracture and fatigue analysis of welded components. Fracture and fatigue analysis in this research starts with a computation of the transient temperature, microstructure, stress and displacement in welds. The set of the Gauss points that have the largest tensile principal stresses are determined for the purpose of locating candidate sites of cracks. Material force, J-integral, stress intensity factor and CTOA are computed from the results of the stress analysis. Result of the SIF can be compared to the fracture toughness. The rate of the crack growth per load cycle in this work is calculated by solving the Paris-Erdogan equation, based on the increment in the stress intensity factor. Verification of the VrWeld is done by comparing the stress results with an analytical solution. Recommendations are made based on the obtained results and the directions of future work are suggested.


Engineering - Mechanical




Carleton University

Thesis Degree Name: 

Master of Applied Science: 

Thesis Degree Level: 


Thesis Degree Discipline: 

Engineering, Mechanical

Parent Collection: 

Theses and Dissertations

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