Computer simulation of ductile fracture

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Finite difference computer simulation programs are capable of very accurate solutions to problems in plasticity with large deformations and rotation. This opens the possibility of developing models of ductile fracture by correlating experiments with equivalent computer simulations. Selected experiments were done to emphasize different aspects of the model. A difficult problem is the establishment of a fracture-size effect. This paper is a study of the strain field around notched tensile specimens of aluminum 6061-T651. A series of geometrically scaled specimens are tested to fracture. The scaled experiments are conducted for different notch radius-to-diameter ratios. The strains at fracture are determined ... continued below

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Pages: 12

Creation Information

Wilkins, M.L. & Streit, R.D. January 1, 1979.

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  • Lawrence Livermore Laboratory
    Publisher Info: California Univ., Livermore (USA). Lawrence Livermore Lab.
    Place of Publication: Livermore, California

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Description

Finite difference computer simulation programs are capable of very accurate solutions to problems in plasticity with large deformations and rotation. This opens the possibility of developing models of ductile fracture by correlating experiments with equivalent computer simulations. Selected experiments were done to emphasize different aspects of the model. A difficult problem is the establishment of a fracture-size effect. This paper is a study of the strain field around notched tensile specimens of aluminum 6061-T651. A series of geometrically scaled specimens are tested to fracture. The scaled experiments are conducted for different notch radius-to-diameter ratios. The strains at fracture are determined from computer simulations. An estimate is made of the fracture-size effect.

Physical Description

Pages: 12

Notes

Dep. NTIS, PC A02/MF A01.

Source

  • ASME winter annual meeting, New York, NY, USA, 2 Dec 1979

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  • Report No.: UCRL-83148
  • Report No.: CONF-791205-8
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5978800
  • Archival Resource Key: ark:/67531/metadc1098324

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

Description Last Updated

  • May 8, 2018, 11:53 a.m.

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Wilkins, M.L. & Streit, R.D. Computer simulation of ductile fracture, article, January 1, 1979; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc1098324/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.