Solution of quasi‐static, force‐driven problems by means of a dynamic‐explicit approach and an adaptive loading procedure

Abstract

Argues that the dynamic‐explicit approach has in recent years been successfully applied to the solution of various quasi‐static, elastic‐plastic problems, especially in the metal forming area. A condition for the success has, however, been that the problems have been displacement‐driven. The solution of similar force‐driven problems, using this approach, has been shown to be much more complicated and computationally time consuming because of the difficulties in controlling the unphysical dynamic forces. Describes a project aiming to develop a methodology by which a force‐driven problem can be analysed with similar computational effort as a corresponding displacement‐driven one. To this end an adaptive loading procedure has been developed, in which the loading rate is controlled by a prescribed velocity norm. Presents several examples in order to exhibit the merits of the proposed procedure.

Citation

Mattiasson, K., Bernspång, L. and Samuelsson, A. (1996), "Solution of quasi‐static, force‐driven problems by means of a dynamic‐explicit approach and an adaptive loading procedure", Engineering Computations, Vol. 13 No. 2/3/4, pp. 172-189. https://doi.org/10.1108/02644409610114521