A two-dimensional finite element stress analysis software system including pre- and post-processor was developed. The major characteristic of this system is that it generates interactively a near-optimum mesh in preprocessor. As a criterion for the near-optimum mesh, this system uses strain energy density informations obtained from initial analysis with a coarse initial mesh. And this system generates a near-optimum mesh independent of initial mesh configurations. The post-processor developed can display interactively the results of finite element analysis on graphic terminal.
The whole procedures of this software system use interactive computer graphics extensively. An interactive character adopted in input and optimization procedure allows the user efficiencies and flexibilities which are not available in self-adaptive processors in batch-mode operations.
In addition to a description of the system and its operation, three examples are included to demonstrate the capabilities of the system.
