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Neutron Scattering Studies to Measure Residual Stresses in Weldments
Dr. David was one of the three man team (Steve Spooner and Cam Hubbard) to measure for the
first time in the United States, residual stresses in weldments using neutron scattering.. This was
responsible for establishing a user center for measuring residual stresses in structures using
neutrons at ORNL.
Dr. David, jointly with colleagues at ORNL, is pursuing recently initiated research activities
related to neutron scattering to measure residual stresses in weldments. This activity is both
nationally and internationally significant. A major concern in welded structures for nuclear and
non-nuclear applications is residual stresses and distortion. Residual stresses can lead to crack
formation and ultimate failure of the structural member. Using the ORNL Laboratory Director's
Research and Development Fund, the group has been able to establish a proven capability at
ORNL to measure residual stresses in structural members using neutron scattering experiments.
For the first time in the US, they were able to map 3-D residual stresses in a multiphase
weldment. Because of the industrial significance and expressed interest from various industries
in this field, the ORNL scientists are in the process of establishing an industrial consortium to
carry out further research and development activities related to residual stresses.
Dr. David was one of the three man team (Steve Spooner and Cam Hubbard) to measure for the
first time in the United States, residual stresses in weldments using neutron scattering.. This was
responsible for establishing a user center for measuring residual stresses in structures using
neutrons at ORNL.
Dr. David, jointly with colleagues at ORNL, is pursuing recently initiated research activities
related to neutron scattering to measure residual stresses in weldments. This activity is both
nationally and internationally significant. A major concern in welded structures for nuclear and
non-nuclear applications is residual stresses and distortion. Residual stresses can lead to crack
formation and ultimate failure of the structural member. Using the ORNL Laboratory Director's
Research and Development Fund, the group has been able to establish a proven capability at
ORNL to measure residual stresses in structural members using neutron scattering experiments.
For the first time in the US, they were able to map 3-D residual stresses in a multiphase
weldment. Because of the industrial significance and expressed interest from various industries
in this field, the ORNL scientists are in the process of establishing an industrial consortium to
carry out further research and development activities related to residual stresses.
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SCIENCE AND TECHNOLOGY OF WELDING AND JOININGno. 2 (2023): 172-172
Encyclopedia of Materials: Metals and Alloyspp.548-557, (2022)
Transactions on Intelligent Welding Manufacturingno. 2 (2018): 3-30
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