Application of MSC/DYNA to Shock and Impact Problems in Aircraft Industry

摘要

Applications to important problems in aircraft industry are presented. In thefirst one the so called Hammershock and the flight loads are forcing the intake of a jet engine plane. The flight loads as the static part are treated with MSC/NASTRAN for efficiency, the hammershock as the highly transient with MSC/DYNA. How to combine these totally different calculations is described. The second problem is about an impact of a steel sphere on a fabric laminated plate. Using the failure criterion of SIMO-Chang, it can be shown, that, after the sphere has bounced off, the plate is partly destroyed caused by failed plies and remaining deformations. Considering the assumptions made the results of MSC/DYNA are in good agreement with the experiment.