A strip-yield rate-dependent model for rapid loading conditions
(1989) In Engineering Fracture Mechanics 33(3). p.429-436- Abstract
In order to obtain quantitative information of the effects of rate dependent plasticity on crack growth initiation, a strip yield (Dugdale) model for small-scale yielding is developed. The adopted rate dependence of the flow stress is of the Perzyna type. Numerical solutions are obtained for different KI(t) functions. By adopting both a displacement-criterion and a stress-criterion for crack growth, rate effects on the dynamic Fracture toughness are studied.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/dde71309-fd31-4ecd-99eb-b4c543fdfc74
- author
- Nilsson, Fred ; Ohlsson, Patrich ; Sjöberg, Fredrik and Ståhle, Per LU
- publishing date
- 1989-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Fracture Mechanics, Fracture Processes, Fracture Criteria
- in
- Engineering Fracture Mechanics
- volume
- 33
- issue
- 3
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0024881162
- ISSN
- 0013-7944
- DOI
- 10.1016/0013-7944(89)90092-1
- language
- English
- LU publication?
- no
- additional info
- Concerns the shift of fracture processes between slow and fast crack growth
- id
- dde71309-fd31-4ecd-99eb-b4c543fdfc74
- date added to LUP
- 2019-05-06 19:18:58
- date last changed
- 2021-01-03 03:25:16
@article{dde71309-fd31-4ecd-99eb-b4c543fdfc74, abstract = {{<p>In order to obtain quantitative information of the effects of rate dependent plasticity on crack growth initiation, a strip yield (Dugdale) model for small-scale yielding is developed. The adopted rate dependence of the flow stress is of the Perzyna type. Numerical solutions are obtained for different K<sub>I</sub>(t) functions. By adopting both a displacement-criterion and a stress-criterion for crack growth, rate effects on the dynamic Fracture toughness are studied.</p>}}, author = {{Nilsson, Fred and Ohlsson, Patrich and Sjöberg, Fredrik and Ståhle, Per}}, issn = {{0013-7944}}, keywords = {{Fracture Mechanics; Fracture Processes; Fracture Criteria}}, language = {{eng}}, month = {{01}}, number = {{3}}, pages = {{429--436}}, publisher = {{Elsevier}}, series = {{Engineering Fracture Mechanics}}, title = {{A strip-yield rate-dependent model for rapid loading conditions}}, url = {{http://dx.doi.org/10.1016/0013-7944(89)90092-1}}, doi = {{10.1016/0013-7944(89)90092-1}}, volume = {{33}}, year = {{1989}}, }