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Title: Dynamic finite element method modeling of the upper shelf energy of precracked Charpy specimens of neutron irradiated weld metal 72W

Abstract

Dynamic finite element modeling of the fracture behavior of fatigue-precracked Charpy specimens in both unirradiated and irradiated conditions was performed using a computer code, ABAQUS Explicit, to predict the upper shelf energy of precracked specimens of a given size from experimental data obtained for a different size. A tensile fracture-strain based method for modeling crack extension and propagation was used. It was found that the predicted upper shelf energies of full and half size precracked specimens based on third size data were in reasonable agreement with their respective experimental values. Similar success was achieved for predicting the upper shelf energy of subsize precracked specimens based on full size data.

Authors:
 [1];  [2];  [3]
  1. Univ. of Missouri, Rolla, MO (United States). Dept. of Nuclear Engineering
  2. Westinghouse-CNFD, Columbia, SC (United States)
  3. Pacific Northwest Lab., Richland, WA (United States)
Publication Date:
OSTI Identifier:
679480
Report Number(s):
CONF-960643-
Journal ID: ISSN 1050-7515; TRN: 99:009413
Resource Type:
Conference
Resource Relation:
Conference: 18. symposium on effects of radiation on materials, Hyannis, MA (United States), 25-27 Jun 1996; Other Information: PBD: 1999; Related Information: Is Part Of Effects of radiation on materials: 18. international symposium; Nanstad, R.K. [ed.] [Oak Ridge National Lab., TN (United States)]; Hamilton, M.L.; Garner, F.A. [eds.] [Pacific Northwest National Lab., Richland, WA (United States)]; Kumar, A.S. [ed.] [Univ. of Missouri, Rolla, MO (United States)]; PB: 1261 p.; ASTM special technical publication 1325
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 22 NUCLEAR REACTOR TECHNOLOGY; FINITE ELEMENT METHOD; CHARPY TEST; FRACTURE PROPERTIES; FATIGUE; PHYSICAL RADIATION EFFECTS; CRACK PROPAGATION; MATHEMATICAL MODELS; PRESSURE VESSELS; REACTOR MATERIALS; SAMPLE PREPARATION

Citation Formats

Kumar, A.S., Sidener, S.E., and Hamilton, M.L.. Dynamic finite element method modeling of the upper shelf energy of precracked Charpy specimens of neutron irradiated weld metal 72W. United States: N. p., 1999. Web.
Kumar, A.S., Sidener, S.E., & Hamilton, M.L.. Dynamic finite element method modeling of the upper shelf energy of precracked Charpy specimens of neutron irradiated weld metal 72W. United States.
Kumar, A.S., Sidener, S.E., and Hamilton, M.L.. Fri . "Dynamic finite element method modeling of the upper shelf energy of precracked Charpy specimens of neutron irradiated weld metal 72W". United States.
@article{osti_679480,
title = {Dynamic finite element method modeling of the upper shelf energy of precracked Charpy specimens of neutron irradiated weld metal 72W},
author = {Kumar, A.S. and Sidener, S.E. and Hamilton, M.L.},
abstractNote = {Dynamic finite element modeling of the fracture behavior of fatigue-precracked Charpy specimens in both unirradiated and irradiated conditions was performed using a computer code, ABAQUS Explicit, to predict the upper shelf energy of precracked specimens of a given size from experimental data obtained for a different size. A tensile fracture-strain based method for modeling crack extension and propagation was used. It was found that the predicted upper shelf energies of full and half size precracked specimens based on third size data were in reasonable agreement with their respective experimental values. Similar success was achieved for predicting the upper shelf energy of subsize precracked specimens based on full size data.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 1999},
month = {Fri Oct 01 00:00:00 EDT 1999}
}

Conference:
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