@Article{cmes.2004.006.017, AUTHOR = {J. H. Jackson, A. S. Kobayashi, S. N. Atluri}, TITLE = {A Three Dimensional Numerical Investigation of the T* integral along a Curved Crack Front}, JOURNAL = {Computer Modeling in Engineering \& Sciences}, VOLUME = {6}, YEAR = {2004}, NUMBER = {1}, PAGES = {17--30}, URL = {http://www.techscience.com/CMES/v6n1/29688}, ISSN = {1526-1506}, ABSTRACT = {The Tε*  integral was calculated numerically along an extending, tunneling crack front in an 8 mm thick, aluminum three-point bend (3PB) specimen, using a numerical model driven by experimentally obtained surface displacements. The model provided input to a contour integration for the Tε*  integral, via the Equivalent Domain Integral (EDI) method with incremental plasticity. Validity of the analysis was ensured by the agreement of the Tε*  integral obtained on the surface (plane stress) and the plane stress values from previous studies. Tε*   was observed to decrease from the outer surface of the specimen to the more constrained mid-plane. This difference became more pronounced as the crack grew.}, DOI = {10.3970/cmes.2004.006.017} }