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Numerical simulation of strain localization based on Cosserat continuum theory and isogeometric analysis
Graphical abstract Display Omitted
Abstract The Cosserat continuum theory is combined with isogeometric analysis (Cos-IGA) to simulate strain localization problems of geomaterials. The results demonstrate that the numerical solution based on Cos-IGA is convergent and mesh-independent and that the Cos-IGA method can capture the initiation and propagation of the shear band as strain localization problem involved. The Cos-IGA method can also effectively alleviate the influence of mesh distortion in the shear zone, even in the case of large deformations. Further, the Cos-IGA method reduces computational cost and eliminates errors caused by geometric discretization compared with the Cos-FEA method. It suggests that the cubic (three-order) basis function for Cos-IGA is the best choice for simulating strain localization problems considering computational cost and convergence.
Numerical simulation of strain localization based on Cosserat continuum theory and isogeometric analysis
Graphical abstract Display Omitted
Abstract The Cosserat continuum theory is combined with isogeometric analysis (Cos-IGA) to simulate strain localization problems of geomaterials. The results demonstrate that the numerical solution based on Cos-IGA is convergent and mesh-independent and that the Cos-IGA method can capture the initiation and propagation of the shear band as strain localization problem involved. The Cos-IGA method can also effectively alleviate the influence of mesh distortion in the shear zone, even in the case of large deformations. Further, the Cos-IGA method reduces computational cost and eliminates errors caused by geometric discretization compared with the Cos-FEA method. It suggests that the cubic (three-order) basis function for Cos-IGA is the best choice for simulating strain localization problems considering computational cost and convergence.
Numerical simulation of strain localization based on Cosserat continuum theory and isogeometric analysis
Tang, Hongxiang (author) / Zhu, Feng (author) / Yang, Dixiong (author) / Papazafeiropoulos, George (author)
2020-10-07
Article (Journal)
Electronic Resource
English
Numerical Simulation of Strain Localization Using a Cosserat Continuum Theory
| British Library Conference Proceedings | 2002