2009, English, Article edition: Shearing effects on the breathing mechanism of a cracked beam section in bi-axial flexure El Arem, Saber

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Bookmark: http://trove.nla.gov.au/version/200795
Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Shearing effects on the breathing mechanism of a cracked beam section in bi-axial flexure
Author
  • El Arem, Saber
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • The main purpose of this paper is to complete the works presented by Andrieux and Varé (2002) and El Arem et al. (2003) by taking into account the effects of shearing in the constitutive equations of a beam cracked section in bi-axial flexure. The paper describes the derivation of a lumped cracked beam model from the three-dimensional formulation of the general problem of elasticity with unilateral contact conditions on the crack lips. Properties of the potential energy and convex analysis are used to reduce the three-dimensional computations needed for the model identification, and to derive the final form of the elastic energy that determines the nonlinear constitutive equations of the cracked transverse section. We aim to establish a relation of behavior between the applied forces and the resulting displacements field vectors, which is compatible with the beams theory in order to allow the model exploitation for shafts dynamics analysis. The approach has been applied to the case of a cracked beam with a single crack covering the half of its circular cross section.
  • HAL:hal-00408872, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00408872/​en/​
Language
  • English
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