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Title: The Thick Level-Set model for dynamic fragmentation

Journal Article · · Engineering Fracture Mechanics

The Thick Level-Set (TLS) model is implemented to simulate brittle media undergoing dynamic fragmentation. This non-local model is discretized by the finite element method with damage represented as a continuous field over the domain. A level-set function defines the extent and severity of damage, and a length scale is introduced to limit the damage gradient. Numerical studies in one dimension demonstrate that the proposed method reproduces the rate-dependent energy dissipation and fragment length observations from analytical, numerical, and experimental approaches. In conclusion, additional studies emphasize the importance of appropriate bulk constitutive models and sufficient spatial resolution of the length scale.

Research Organization:
Krell Institute, Ames, IA (United States)
Sponsoring Organization:
USDOE; European Research Council (ERC)
Grant/Contract Number:
FG02-97ER25308; XLS291102
OSTI ID:
1417265
Alternate ID(s):
OSTI ID: 1411815
Journal Information:
Engineering Fracture Mechanics, Vol. 172, Issue C; ISSN 0013-7944
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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  • Papoulia, Katerina D.; Vavasis, Stephen A.; Ganguly, Pritam
  • International Journal for Numerical Methods in Engineering, Vol. 67, Issue 1 https://doi.org/10.1002/nme.1598
journal January 2006
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An enriched finite volume formulation for the simulation of ductile material failure under shock loading journal January 2020

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