1985 Volume 51 Issue 467 Pages 1893-1899
This paper investigates that an impact contact force can be expressed as the product series of the penalty functions and the subsidiary contact conditions on a contact area between two bodies. Using the expression of the impact force, all the subsidiary contact conditions are relaxed in a virtual work principle for two bodies, and a penalty function method can be transformed from the concept of a least square method into that of a virtual work method. The use of a virtual work principle makes it easy to formulate a finite element method (FEM). Then, this paper also presents a virtual work principle with penalty functions for various impact contact states of two bodies. A FEM based on this principle is applied to a two-dimensional problem for the longitudinal impact of two bodies. The mean value of impact force by the FEM agrees well with the value from the theory of propagation of one-dimensional elastic stress wave.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Transactions of the Japan Society of Mechanical Engineers Series C
Transactions of the Japan Society of Mechanical Engineers Series B