Does the cyclic J-integral ΔJ describe the crack-tip opening displacement in the presence of crack closure?
- 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 materialIn 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.…
| Document Type: | Article (reviewed) |
|---|---|
| Zitierlink: | https://opus.hs-offenburg.de/1881 | Bibliografische Angaben |
| Title (English): | Does the cyclic J-integral ΔJ describe the crack-tip opening displacement in the presence of crack closure? |
| Author: | Mario Metzger , Thomas SeifertStaff MemberORCiDGND, Christoph SchweizerORCiD |
| Year of Publication: | 2015 |
| Place of publication: | Kidlington |
| Publisher: | Elsevier Science |
| First Page: | 459 |
| Last Page: | 473 |
| Parent Title (English): | Engineering Fracture Mechanics |
| Volume: | 134 |
| ISSN: | 0013-7944 |
| DOI: | https://doi.org/10.1016/j.engfracmech.2014.07.017 |
| URN: | https://urn:nbn:de:0011-n-3320648 |
| Language: | English | Inhaltliche Informationen |
| Institutes: | Fakultät Maschinenbau und Verfahrenstechnik (M+V) |
| Collections of the Offenburg University: | Bibliografie |
| GND Keyword: | Finite-Elemente-Methode; Integralrechnung; Spalt; Verschluss |
| Tag: | Crack closure; Cyclic J; Fatigue crack growth; J-integral | Formale Angaben |
| Open Access: | Closed Access |
| Licence (German): |  Urheberrechtlich geschützt |