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A Finite Element Analysis of a Crack Penetrating or Deflecting Into an Interface in a Thin Laminate

Kao-Walter, Sharon; Ståhle, Per LU and Chen, Shaohua (2006) In Key Engineering Materials 312. p.173-178
Abstract
The crack tip driving force of a crack growing from a pre-crack that is perpendicular to and terminating at an interface between two materials is investigated using a linear fracture mechanics theory. The analysis is performed both for a crack penetrating the interface, growing straight ahead, and for a crack deflecting into the interface. The results from finite element calculations are compared with asymptotic solutions for infinitesimally small crack extensions. The solution is found to be accurate even for fairly large amounts of crack growth. Further, by comparing the crack tip driving force of the deflected crack with that of the penetrating crack, it is shown how to control the path of the crack by choosing the adhesion of the... (More)
The crack tip driving force of a crack growing from a pre-crack that is perpendicular to and terminating at an interface between two materials is investigated using a linear fracture mechanics theory. The analysis is performed both for a crack penetrating the interface, growing straight ahead, and for a crack deflecting into the interface. The results from finite element calculations are compared with asymptotic solutions for infinitesimally small crack extensions. The solution is found to be accurate even for fairly large amounts of crack growth. Further, by comparing the crack tip driving force of the deflected crack with that of the penetrating crack, it is shown how to control the path of the crack by choosing the adhesion of the interface relative to the material toughness. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Adhesion, Crack Tip Driving Force, Deflecting, Interface, Penetrating
in
Key Engineering Materials
volume
312
pages
173 - 178
publisher
Trans Tech Publications Ltd
external identifiers
  • scopus:33645745981
ISSN
1013-9826
DOI
10.4028/www.scientific.net/KEM.312.173
language
English
LU publication?
yes
id
5552da1f-4908-416d-8d06-08e1e00cefcb (old id 925259)
date added to LUP
2008-01-27 11:22:28
date last changed
2017-01-01 07:55:10
@article{5552da1f-4908-416d-8d06-08e1e00cefcb,
  abstract     = {The crack tip driving force of a crack growing from a pre-crack that is perpendicular to and terminating at an interface between two materials is investigated using a linear fracture mechanics theory. The analysis is performed both for a crack penetrating the interface, growing straight ahead, and for a crack deflecting into the interface. The results from finite element calculations are compared with asymptotic solutions for infinitesimally small crack extensions. The solution is found to be accurate even for fairly large amounts of crack growth. Further, by comparing the crack tip driving force of the deflected crack with that of the penetrating crack, it is shown how to control the path of the crack by choosing the adhesion of the interface relative to the material toughness.},
  author       = {Kao-Walter, Sharon and Ståhle, Per and Chen, Shaohua},
  issn         = {1013-9826},
  keyword      = {Adhesion,Crack Tip Driving Force,Deflecting,Interface,Penetrating},
  language     = {eng},
  pages        = {173--178},
  publisher    = {Trans Tech Publications Ltd},
  series       = {Key Engineering Materials},
  title        = {A Finite Element Analysis of a Crack Penetrating or Deflecting Into an Interface in a Thin Laminate},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/KEM.312.173},
  volume       = {312},
  year         = {2006},
}