Neutron diffraction measurements and modeling of residual strains in metal matrix composites

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Neutron diffraction measurements at room temperature are used to characterize the residual strains in tungsten fiber-reinforced copper matrix, tungsten fiber-reinforced Kanthal matrix, and diamond particulate-reinforced copper matrix composites. Results of finite element modeling are compared with the neutron diffraction data. In tungsten/Kanthal composites, the fibers are in compression, the matrix is in tension, and the thermal residual strains are a strong function of the volume fraction of fibers. In copper matrix composites, the matrix is in tension and the stresses are independent of the volume fraction of tungsten fibers or diamond particles and the assumed stress free temperature because of ... continued below

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10 p.

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Saigal, A.; Leisk, G.G.; Hubbard, C.R.; Misture, S.T. & Wang, X.L. April 1, 1996.

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Description

Neutron diffraction measurements at room temperature are used to characterize the residual strains in tungsten fiber-reinforced copper matrix, tungsten fiber-reinforced Kanthal matrix, and diamond particulate-reinforced copper matrix composites. Results of finite element modeling are compared with the neutron diffraction data. In tungsten/Kanthal composites, the fibers are in compression, the matrix is in tension, and the thermal residual strains are a strong function of the volume fraction of fibers. In copper matrix composites, the matrix is in tension and the stresses are independent of the volume fraction of tungsten fibers or diamond particles and the assumed stress free temperature because of the low yield strength of the matrix phase.

Physical Description

10 p.

Notes

OSTI as DE96008097

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  • 20. annual conference on composites, advanced ceramics, materials and structures-B, Cocoa Beach, FL (United States), 7-11 Jan 1996

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  • Other: DE96008097
  • Report No.: CONF-960106--7
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/219393 | External Link
  • Office of Scientific & Technical Information Report Number: 219393
  • Archival Resource Key: ark:/67531/metadc669990

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  • April 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Aug. 8, 2016, 8:50 p.m.

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Saigal, A.; Leisk, G.G.; Hubbard, C.R.; Misture, S.T. & Wang, X.L. Neutron diffraction measurements and modeling of residual strains in metal matrix composites, report, April 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc669990/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.