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Dynamic ductile fracture of a central crackA central crack, symmetrically growing at a constant speed in a two dimensional ductile material subject to uniform tension at infinity, is investigated using the integral transform methods. The crack is assumed to be the Dugdale crack, and the finite stress condition at the crack tip is satisfied during the propagation of the crack. Exact expressions of solution are obtained for the finite stress condition at the crack tip, the crack shape, the crack opening displacement, and the energy release rate. All those expressions are written as the product of explicit dimensional quantities and a nondimensional dynamic correction function. The expressions reduce to the associated static results when the crack speed tends to zero, and the nondimensional dynamic correction functions were calculated for various values of the parameter involved.
Document ID
19770003311
Document Type
Conference Paper
Authors
Tsai, Y. M. (Iowa State Univ. of Science and Technology Ames, IA, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Publication Information
Publication: NASA. Langley Res. Center Advan. in Eng. Sci., Vol. 1
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NSF ENG-74-08147
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19770003288Analytic PrimaryAdvances in engineering science, volume 1
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