The paper analyses the effectiveness of the regularization technique known as nonlocal model of integral type when applied to the microplane model M4. An “over-nonlocal” generalization of the type proposed by Vermeer and Brinkgreve (1994) is adopted. Moreover, the symmetric…
The paper analyses the effectiveness of the regularization technique known as nonlocal model of integral type when applied to the microplane model M4. An “over-nonlocal” generalization of the type proposed by Vermeer and Brinkgreve (1994) is adopted. Moreover, the symmetric nonlocal formulation proposed by Borino et al. (2003), and the “visibility criterion” is introduced in the over- nonlocal formulation of the microplane model M4. The model has been applied to the simulation of a recent experimental investigation on mode I fracture.