Abstract
In this paper, we develop the simulation method of crack propagation under nearly incompressible condition. The finite cover method (FCM), which defines the multiple covers, enables us to deal with the discontinuous deformation. However, the conventional FCM with the constant strain triangle (CST) element suffers from stress oscillation caused by the volumetric locking. Avoiding the volumetric locking and to simulate the crack propagations in incompressible materials, we implement the P1-iso-P2/P0 element into the FCM. Several illustrations show how to approximate the discontinuous displacement fields by FCM with P1-iso-P2/P0 element. Some representative numerical examples demonstrate the performance of the proposed method for crack propagation simulations.
