Secondary Development of FLAC3D and Application of Naylor K-G Constitutive Model

Abstract

Because of the complexity and variety of geotechnical material, the constitutive models put forward by existing FLAC 3D software can't satisfy all the requirements of actual numerical analysis. In accordance with fundamental code-run-principle of FLAC 3D software, the basic principle of the secondary development program is made, the modified Naylor constitutive model is developed in FLAC 3D with VC++(7.0) environment. A series of simulations of triaxial tests are performed to verify the correctness of the compiled model. The Secondary development environment is more friendly and effective in support of object-oriented approach. Therefore, the design mode proposed in this paper can be served as references for secondary development of other constitutive models.