Li, Shaofan; Liu, Wing-Kam; Rosakis, Ares J.; Han, Wei; Belytschko, Ted
UCB/SEMM-2000/07, Dept. of Civil and Environmental Engineering, University of California, Berkeley, 2000, 33 pages (500/C23/2000/07)
A meshfree discretization/approximation has been used in a simple explicit displacement based formulation to simulate dynamic shear propagation in a pre-notched plate with impact loading. The main contributions of this study are: 1) the numerical computations have successfully simulated the failure mode transition/switch; 2) the numerical simulation confirms that there is a self-similar, autonomous state variable field moving with shear band in front of a propagating, brittle crack, and 3) adiabatic shear band can propagate only if the newly formed localization suffers a stress collapse.
Available online: http://nisee.berkeley.edu/elibrary/files/documents/SEMM/SEMM-2000-07.pdf (1 MB)