| 摘要 |
<p>Disclosed are a method and a system for creating a contact surface definition involving lower order and quadratic finite elements (QFE) in a FEA model used for numerically simulating an impact event. An FEA model is organized by one or more groups of finite elements. Each group represents one of the product′s parts and is identified by a part ID. Further, the FEA model is configured with one or more contact surface definitions for detecting contacts among the parts due to the impact event. For each determined group that is determined to contain QFE, a new group is created. The new group is associated with a unique part ID. Contact segments for the new group are then generated in accordance with a set of predefined rules for subdividing one or more geometric shapes associated with the QFE. Contact surface definitions are updated by replacing each determined group with the new group.</p> |
