Ke Jinfu, Wu AiXiang. A modified virtual multi-dimensional internal bonds model for geologic materials[J].MECHANIKA,2015,21(5)347-351（SCI）
Summary: 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 mod-el successfully extends the limit Poisson ratio to 0.5. This new model fits well with the uniaxial tension process of brittle rock materials.