caa a22 4500 469123885 CHVBK 20180323133146.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF00032694 doi (NATIONALLICENCE)springer-10.1007/BF00032694 On the computation of stress intensity factors for three-dimensional geometries by means of the stiffness derivative and J -integral methods [Elektronische Daten] [Leslie Banks-Sills, Dov Sherman] Two methods are examined for accurately calculating stress intensity factors in two and three dimensions: the stiffness derivative technique and the J-integral method. In two dimensions the J-integral is expressed as an area integral, whereas in three dimensions it is a volume integral. With both techniques, a virtual crack extension is introduced. Although the expressions employed for each method are quite different, it is proven that when written analytically for finite element calculation, they reduce to identical expressions. Numerical calculations are carried out in both two and three dimensions. As a result of the equivalence of the two methods, close numerical agreement is expected. For two-dimensional geometries and a penny shaped crack in a finite height cylinder, there is at least five significant figure agreement between solutions determined by both methods. For an elliptical crack embedded in a plate, the agreement is generally to four significant figures. Kluwer Academic Publishers, 1992 Banks-Sills Leslie The Eda and Jaime David Dreszer Fracture Mechanics Laboratory, Department of Mechanics, Materials and Structures, Faculty of Engineering, Tel Aviv University, 69978, Ramat Aviv, Israel aut Sherman Dov The Eda and Jaime David Dreszer Fracture Mechanics Laboratory, Department of Mechanics, Materials and Structures, Faculty of Engineering, Tel Aviv University, 69978, Ramat Aviv, Israel aut International Journal of Fracture Kluwer Academic Publishers 53/1(1992-01-01), 1-20 0376-9429 53:1<1 1992 53 10704 https://doi.org/10.1007/BF00032694 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00032694 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Banks-Sills Leslie The Eda and Jaime David Dreszer Fracture Mechanics Laboratory, Department of Mechanics, Materials and Structures, Faculty of Engineering, Tel Aviv University, 69978, Ramat Aviv, Israel aut NATIONALLICENCE 700 1- Sherman Dov The Eda and Jaime David Dreszer Fracture Mechanics Laboratory, Department of Mechanics, Materials and Structures, Faculty of Engineering, Tel Aviv University, 69978, Ramat Aviv, Israel aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 53/1(1992-01-01), 1-20 0376-9429 53:1<1 1992 53 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer