COLLABORATIVE RESEARCH AND DEVELOPMENT (CR&D) Delivery Order 0055: Molecular Dynamics Modeling Support
Final rept. 10 Aug 2006-10 Dec 2007
UNIVERSAL TECHNOLOGY CORP DAYTON OH
Pagination or Media Count:
This research in support of the Air Force Research Laboratory Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 10 August 2006 through 10 December 2007. We introduce a new mathematically rigorous high fidelity asymptotic theory for recovering the local field behavior inside complex composite architectures. The theory applies to zones containing strong spatial variance of local material properties. The method is used to recover the local field across ply interfaces for a pre-stressed multi-ply fiber reinforced composite. The results are shown to be in good agreement with direct numerical simulations for realistic fiber sizes and fiber-matrix elastic properties. We also demonstrate failure envelopes of composite systems using homogenizationdehomogenization micro-mechanical enhancement techniques.
- Laminates and Composite Materials