INTEGRATED COMPUTATIONAL METHODS FOR COMPOSITE MATERIALS (ICM2): PROCESS AND MICROMECHANICS MODELING FOR AIRFRAME APPLICATIONS

摘要

Lockheed Martin Aeronautics and a team of process and structural analysis modeling experts arernconducting a demonstration of an Integrated Computational Materials Engineering digitalrnframework that links material processing, property and structural relationships to account forrnprocessibility, manufacturability and system performance. The goal of the program is torndemonstrate that the usage of integrated models can contribute to reductions in future airframe andrnengine materials and process development time and cost. The airframe efforts at the panel levelrnare employing process modeling to predict physical and elastic property dependency on the appliedrncure cycle of bismaleimide composites. Micromechanics modeling is then used to predict lamina,rnand ultimately, notched compression and damage tolerance performance. The current airframernpanel level efforts are being followed by modeling of elements represented by aircraft wing tiprntrailing edge spars. Successful development and validation of these process and micromechanicsrnmodels will lead to cure parameters for composite parts that are tailored to the aircraft structuresrnfor which they are designed.