It provides the method and program code to calculate the minimum distance between collision objects,collision normal vector,relative normal velocity and to detect the contact style.

Measurements of release sound velocities of tin with reverse-impact method;

Finite element analysis for elastic-plastic dynamic postbuckling of bars subjected to axial impact;

The objective is to present analytical solutions of longitudinal impact analysis for slender conical rods struck by a particle and a new method is proposed for conical rod-particle impact analysis,in which the superposition method is used and the response of the rod is presented.

<Abstrcat>The strikeslip transform structures originated from oblique collision are believed to be the principal structural patterns commonly observed in continental orogenic zones.