Modeling of steel bar fracture process by method of particles in MSC.Adams

The steel bar «shrinkage» and «explosion» effects are discussed, as well as the
necessity to use artificial viscous friction to provide damping of molecules intense
oscillations in the vicinity of their staticequilibrium state. The bar is considered as a
discrete set of a relatively small quantity of «molecules». The force characteristic of
each molecule is chosen in order to provide a maximum compliance with the
experimental tension-fracture curve, obtained using a Zwick/Roell pull-test machine.