A modified virtual multi-dimensional internal bonds model for geologic materials

Authors

  • KE JinFu School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
  • Wu AiXiang School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China

DOI:

https://doi.org/10.5755/j01.mech.21.5.10956

Keywords:

virtual multi-dimensional internal bonds, augmented vir-tual internal bond, non-linear elasticity

Abstract

This article presents a modified version of the vir-tual multi-dimensional internal bonds model. In this modi-fied model, a different approach for virtual internal bond’ strain energy is proposed, which uses the spherical stretch strain and the shear strain to calculate the bonds’ stretch energy and shear energy respectively, so as to overcome the excessive stretch energy in the virtual multi-dimensional internal bonds model. And the modified model successfully extends the limit Poisson ratio to 0.5. This new model could be applied to simulate material non-linearity behavior.

DOI: https://dx.doi.org/10.5755/j01.mech.21.5.10956

Author Biographies

KE JinFu, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China

In 2013, JinFu Ke received his bachelor's degree in Mining Engineering from University of Science and Technology Beijing. And now he is also a postgraduate of Mining Engineering of University of Science and Technology Beijing.

Wu AiXiang, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China

AiXiang Wu obtained his Ph.D. in Mining Engineering from Central South University of Technology. And now he is professor and PhD supervisor at University of Science and Technology Beijing’s College of Civil and environmental engineering. His Main research interests are granular dynamic theory, rock mechanics, paste filling mining and solution mining.

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Published

2015-10-16

Issue

Vol. 21 No. 5 (2015)

Section

MECHANICS OF SOLID BODIES