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A strip-yield rate-dependent model for rapid loading conditions

Nilsson, Fred ; Ohlsson, Patrich ; Sjöberg, Fredrik and Ståhle, Per LU (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.

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author
; ; and
publishing date
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
2020-01-13 01:43:38
@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},
  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},
}