Volumetric Constraint Models for Anisotropic Elastic Solids Journal Article uri icon



  • We study three “incompressibility flavors” of linearly elastic anisotropic solids that exhibit volumetric constraints: isochoric, hydroisochoric, and rigidtropic. An isochoric material deforms without volume change under any stress system. An hydroisochoric material does so under hydrostatic stress. A rigidtropic material undergoes zero deformations under a certain stress pattern. Whereas the three models coalesce for isotropic materials, important differences appear for anisotropic behavior. We find that isochoric and hydroisochoric models under certain conditions may be hampered by unstable physical behavior. Rigidtropic models can represent semistable physical materials of arbitrary anisotropy while including isochoric and hydroisochoric behavior as special cases.

publication date

  • September 1, 2004

Full Author List

  • Felippa CA; On˜ate E

Other Profiles

Additional Document Info

start page

  • 731

end page

  • 734


  • 71


  • 5