On the incremental nonlinearity observed in a numerical model for granular media

 

As a generalized constitutive relationship for granular media, incrementally nonlinear models have been proposed by many researchers. However, it is hard to evaluate the validity of such constitutive models in terms of experiments on real materials. On the other hand, the discrete element simulations have the capability to solve this problem. In this paper, true tri-axial stress-probe tests were simulated in terms of a discrete element method (Granular Element Method, or GEM). The

 

As a generalized constitutive relationship for granular media, incrementally nonlinear models have been proposed by many researchers. However, it is hard to evaluate the validity of such constitutive models in terms of experiments on real materials. On the other hand, the discrete element simulations have the capability to solve this problem. In this paper, true tri-axial stress-probe tests were simulated in terms of a discrete element method (Granular Element Method, or GEM). The

result suggests that the exact behavior of granular media has to be described by a model with incremental nonlinearity. The stability in the incremental relationship between stress and strain is also discussed based on the second-order work.


  As a gen …


AUTORI: Kishino Y.
RIG ANNO:2002 NUMERO:3
Numero di pagine: 30


Allegato: https://associazionegeotecnica.it/wp-content/uploads/2010/03/RIG_2003_3_30.pdf
Allegato:
Articolo completo: https://associazionegeotecnica.it/wp-content/uploads/2010/03/RIG_2003_3_30.pdf