The strain energy criterion of mixed-mode brittle fracture

In this paper, we proposed a new criterion of mixed-mode brittle fracture, i.e., the strain energy criterion, which can be stated as (K_I/K_Ic)²+(K_I/K_Ic)²+(K_I/K_Ic)²=1. This criterion is shown to be in good agreement with known experimental data.In this paper, an experimental criterion: (K_I/K_Ic)^m+(K_I/K_Ic)ⁿ=1. 1 _n ^m 2. is also proposed.Central-South Institute of Mining and Metallurgy