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Expanding spherical cavity

  1. Mar 30, 2010 #1
    this is a short abstract of problm i m working upon..so plz help ..suggestions are kindheartedly welcome...
    a spherical cavity of radius R in a Mohr-Coulomb incompressible material. properties are defi ned by Young's modulus E, Poisson's ratio v, internal angle of friction (shi)

    i approached it like this...incase of any discrepency plz refine it...

    first assuming a region upto which plastic zone will exist and yielding will occur ....after that elastic zone will exist... then calculating stresses in elastic zone assuming far field stress to be constant...but i am stuck for plastic zone... what is the constitutive law for this??how to determine displacements?
  2. jcsd
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