Plastic Mechanisms During Fast Brittle Fracture
(1995) Joint ASME/JSME Pressure Vessels and Piping Conference p.69-72- Abstract
- Small ligaments connecting the fracture surfaces just behind a moving crack front are assumed to exist under certain conditions. The ligaments are rapidly torn as the crack advances. Inelastic straining of such ligaments influences the energy balance in the fracture process. The rapid tearing of a single ligament is studied both numerically and experimentally. An elastic visco-plastic material model is adopted for finite-element calculations. The results show that relatively large amounts of energy are dissipated during the tearing process. Further, the energy needed to tear a ligament increases rapidly with increasing tearing rate. The computed behavior is partly verified in a few preliminary experiments. The implications for slow stable... (More)
- Small ligaments connecting the fracture surfaces just behind a moving crack front are assumed to exist under certain conditions. The ligaments are rapidly torn as the crack advances. Inelastic straining of such ligaments influences the energy balance in the fracture process. The rapid tearing of a single ligament is studied both numerically and experimentally. An elastic visco-plastic material model is adopted for finite-element calculations. The results show that relatively large amounts of energy are dissipated during the tearing process. Further, the energy needed to tear a ligament increases rapidly with increasing tearing rate. The computed behavior is partly verified in a few preliminary experiments. The implications for slow stable crack tip speeds during dynamic fracture are discussed. (C) 1998 Elsevier Science S.A. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/6625bc89-8f13-4af4-a198-b1e59e82ce23
- author
- Nilsson, Per ; Sundin, K.G. and Ståhle, P. LU
- publishing date
- 1995
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Dynamic fracture failure, and deformation : presented at the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference, Honolulu, Hawaii, July 23-27 1995 - presented at the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference, Honolulu, Hawaii, July 23-27 1995
- editor
- Nishioka, T. and Epstein, J. S.
- pages
- 69 - 72
- publisher
- American Society Of Mechanical Engineers (ASME)
- conference name
- Joint ASME/JSME Pressure Vessels and Piping Conference
- conference location
- Honolulu, United States
- conference dates
- 1995-07-23 - 1995-07-27
- external identifiers
-
- scopus:0029422786
- ISBN
- 0791813312
- language
- English
- LU publication?
- no
- id
- 6625bc89-8f13-4af4-a198-b1e59e82ce23
- date added to LUP
- 2019-06-26 10:05:18
- date last changed
- 2021-03-29 18:15:16
@inproceedings{6625bc89-8f13-4af4-a198-b1e59e82ce23, abstract = {{Small ligaments connecting the fracture surfaces just behind a moving crack front are assumed to exist under certain conditions. The ligaments are rapidly torn as the crack advances. Inelastic straining of such ligaments influences the energy balance in the fracture process. The rapid tearing of a single ligament is studied both numerically and experimentally. An elastic visco-plastic material model is adopted for finite-element calculations. The results show that relatively large amounts of energy are dissipated during the tearing process. Further, the energy needed to tear a ligament increases rapidly with increasing tearing rate. The computed behavior is partly verified in a few preliminary experiments. The implications for slow stable crack tip speeds during dynamic fracture are discussed. (C) 1998 Elsevier Science S.A. All rights reserved.}}, author = {{Nilsson, Per and Sundin, K.G. and Ståhle, P.}}, booktitle = {{Dynamic fracture failure, and deformation : presented at the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference, Honolulu, Hawaii, July 23-27 1995}}, editor = {{Nishioka, T. and Epstein, J. S.}}, isbn = {{0791813312}}, language = {{eng}}, pages = {{69--72}}, publisher = {{American Society Of Mechanical Engineers (ASME)}}, title = {{Plastic Mechanisms During Fast Brittle Fracture}}, year = {{1995}}, }