Foundations of statistical crack mechanics

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The principle of superposition of elastic and plactic strain rates in regions of plastic flow was hypothesized by Reuss in order to provide a smooth transition of the stresses between regions of elastic and elastic-plastic deformation. In this paper a generalization of this hypothesis is derived which allows for the formulation of more complex constitutive laws that can account for simultaneous plastic flow, fracture, fragmentation, and changes in porosity. Such processes can occur during impact, explosions and earthquakes. The possibility of analyzing such processes by finite element methods has been made possible by the advent of large scale computers, but ... continued below

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Pages: 7

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Dienes, J.K. January 1, 1986.

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Description

The principle of superposition of elastic and plactic strain rates in regions of plastic flow was hypothesized by Reuss in order to provide a smooth transition of the stresses between regions of elastic and elastic-plastic deformation. In this paper a generalization of this hypothesis is derived which allows for the formulation of more complex constitutive laws that can account for simultaneous plastic flow, fracture, fragmentation, and changes in porosity. Such processes can occur during impact, explosions and earthquakes. The possibility of analyzing such processes by finite element methods has been made possible by the advent of large scale computers, but most practioners agree that more general constitutive laws are required to account adequately for the complex flow processes involved.

Physical Description

Pages: 7

Notes

NTIS, PC A02/MF A01; 1.

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  • International symposium on intense dynamic loading and its effects, Beijing, China, 3 Jun 1986

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  • Other: DE86000764
  • Report No.: LA-UR-85-3264
  • Report No.: CONF-860616-5
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5796085
  • Archival Resource Key: ark:/67531/metadc1098755

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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.

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  • January 1, 1986

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • May 22, 2018, 4:29 p.m.

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Dienes, J.K. Foundations of statistical crack mechanics, article, January 1, 1986; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1098755/: accessed August 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.