The influence of nonlinear material properties and resistance to bending on the development of internal structures |
| |
| Authors: | J-P Latham |
| |
| Institution: | Department of Geology, Imperial College, London, SW7 2BP, U.K. |
| |
| Abstract: | A reexamination of Biot's internal instability analysis, including the effects of bending resistance and nonlinear material properties, shows that internal buckling and oblique localized shearing into bands are the two end-member processes associated with internal instability. The first is a consequence of a high anisotropy which is an intrinsic property of the original unstressed layering or foliation. The second is a consequence of a highly anisotropic material response to perturbations which is induced during the initial uniform compression if material properties are nonlinear. The incremental anisotropy generating the instability is associated with planes of least resistance to shearing in directions parallel to the initial compression in the first case and at 45° to the initial compression in the second case. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
