Effect of Auto-switching between Implicit Integration and Explicit Integration against the Calculation Results

Abstract

When a thin shell structured is buckled, the incremental change of external work and internal strain energy are not balanced each other. In such a case, the arc-length method is widely used to proceed the calculation. On the other hand, when the implicit integration does not converge, the explicit integration can be used to follow the last converged result of the implicit integration. But if this auto-switching process follows the pre-setting condition, the result of calculation would be highly influenced. In this paper, the effect of the auto-switching process against to its result is reported.