TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Metzger, Mario
A1  - Seifert, Thomas
A1  - Schweizer, Christoph
T1  - Does the cyclic J-integral ΔJ describe the crack-tip opening displacement in the presence of crack closure?
JF  - Engineering Fracture Mechanics
N2  - In this paper, the correlation of the cyclic J-integral, ΔJ, and the cyclic crack-tip opening displacement, ΔCTOD, is studied in the presence of crack closure to assess the question if ΔJ describes the crack-tip opening displacement in this case. To this end, a method is developed to evaluate ΔJ numerically within finite-element calculations. The method is validated for an elastic–plastic material that exhibits Masing behavior. Different strain ranges and strain ratios are considered under fully plastic cyclic conditions including crack closure. It is shown that the cyclic J-integral is the parameter to determine the cyclic crack-tip opening displacement even in cases where crack closure is present.
KW  - Verschluss
KW  - J-integral
KW  - Cyclic J
KW  - Fatigue crack growth
KW  - Crack closure
KW  - Spalt
KW  - Integralrechnung
KW  - Finite-Elemente-Methode
Y1  - 2015
UN  - https://nbn-resolving.org/urn:nbn:de:0011-n-3320648
SN  - 0013-7944
SS  - 0013-7944
U6  - https://doi.org/10.1016/j.engfracmech.2014.07.017
DO  - https://doi.org/10.1016/j.engfracmech.2014.07.017
VL  - 134
SP  - 459
EP  - 473
PB  - Elsevier Science
CY  - Kidlington
ER  -