@Article{cmc.2015.046.001,
AUTHOR = {Poh-Sang Lam, Jwo Pan},
TITLE = {Fracture Mechanics Approach to Estimate Fatigue Lives of Welded Lap-Shear Specimens},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {46},
YEAR = {2015},
NUMBER = {1},
PAGES = {1--16},
URL = {http://www.techscience.com/cmc/v46n1/22792},
ISSN = {1546-2226},
ABSTRACT = {A full range of stress intensity factor solutions for a kinked crack with finite length is developed as a function of weld width and the sheet thickness. When used with the main crack solutions (global stress intensity factors) in terms of the applied load and the specimen geometric parameters, the fatigue lives of the kinked crack can be estimated for the laser-welded lap-shear specimens. The predicted curve for the load range-fatigue life passes through the cluster of experimental data and is in good agreement. A classical solution associated with an infinitesimal kink is also employed. However, its life prediction tends to overestimate the actual fatigue life. In addition, the traditional fatigue life estimation based on structural stress is performed for completeness. This non-fracture mechanics approach only agrees well with the experimental data under high cyclic load conditions.},
DOI = {10.3970/cmc.2015.046.001}
}