Multiscale Modeling and Analysis of Foreign Object Damage in Ceramic Matrix Composites with the Material Point Method

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-10-C-0417
Agency Tracking Number: N10A-010-0369
Amount: $70,000.00
Phase: Phase I
Program: STTR
Awards Year: 2010
Solitcitation Year: 2010
Solitcitation Topic Code: N10A-T010
Solitcitation Number: 2010.A
Small Business Information
Advanced Dynamics, Inc.
1500 Bull Lea Road, Suite 203, Lexington, KY, 40511
Duns: 790637867
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Patrick Hu
 President and Chairman
 (859) 699-0441
 patrick.g.hu@advanceddynamics-usa.c
Business Contact
 Patrick Hu
Title: President and Chairman
Phone: (859) 699-0441
Email: patrick.g.hu@advanceddynamics-usa.c
Research Institution
 University of Missouri
 Leeann Davenport
 310 Jesse Hall
Columbia, MO, 65211
 (573) 882-2678
 Nonprofit college or university
Abstract
This Small Business Technology Transfer Phase I project is aiming at developing and implementing a multiscale composite model to predict the ceramic matrix composite (CMC) response to the impact loading by foreign objects. In particular, the physics-based model will be applied to describe the multiscale foreign object damage (FOD) phenomena of CMCs due to the complex nature of impact dynamics coupled with the composite architectural/constituent complications at different scales. To catch the essential features of FOD of CMCs with the least computational costs, an effective multi-scale model-based simulation procedure is proposed within the framework of the material point method (MPM) so that the size, rate and thermal effects on the composite system response could be described in a single computational domain. The MPM, as an extension from computational fluid dynamics to computational solid dynamics, is chosen to overcome the mesh distortion and interpenetration problems associated with failure evolution in a multi-phase environment, and thus avoid the need for remeshing as required for the FEM and other Lagrangian based methods. The proposed multiscale model-based simulation procedure will be verified and improved with experimental data available, and a parametric study will be performed to explore the effects of various model parameters on the damage evolution of CMCs subject to foreign object impacts. This STTR effort will lead to a better understanding of the multiscale interaction effects on the CMCs system response so that the microstructures of CMC materials could be optimized to enhance the FOD resistance.

* information listed above is at the time of submission.

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